{"id":116,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/fatigue\/"},"modified":"2026-05-23T22:51:15","modified_gmt":"2026-05-23T22:51:15","slug":"fatigue","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/fatigue\/","title":{"rendered":"O que \u00e9 Fadiga Mec\u00e2nica? Falha por Tens\u00e3o C\u00edclica"},"content":{"rendered":"<h1>Compreendendo a Fadiga Mec\u00e2nica<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A full kit portable balancer and vibration analyzer\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; Analisador de vibra\u00e7\u00e3o Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adicione ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A vibration sensor close-up\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>90.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adicione ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (Tac\u00f4metro a Laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>124.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adicione ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Vibromera rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adicione ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico Insize-60-kgf\">Suporte Magn\u00e9tico Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>46.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adicione ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletiva\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adicione ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,735.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adicione ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>A fadiga mec\u00e2nica<\/strong> (tamb\u00e9m chamada de fadiga do material, ou simplesmente fadiga) \u00e9 o dano estrutural progressivo e localizado que se desenvolve quando um material \u00e9 submetido a ciclos repetidos de tens\u00e3o ou deforma\u00e7\u00e3o \u2014 mesmo quando a tens\u00e3o de pico em cada ciclo fica confortavelmente abaixo da resist\u00eancia \u00faltima \u00e0 tra\u00e7\u00e3o ou do limite de escoamento do material. Trincas microsc\u00f3picas se iniciam e crescem ao longo de milhares, milh\u00f5es ou at\u00e9 bilh\u00f5es de ciclos at\u00e9 que a se\u00e7\u00e3o transversal restante n\u00e3o consiga mais suportar a carga e a pe\u00e7a se fratura, muitas vezes sem qualquer aviso vis\u00edvel. Em m\u00e1quinas rotativas, \u00e9 o modo de falha mais comum, encurtando silenciosamente a vida \u00fatil de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor\/\">rotores<\/a>, eixos, engrenagens, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-defects\/\">rolamentos<\/a>, elementos de fixa\u00e7\u00e3o e estruturas de suporte, e \u00e9 impulsionada diretamente pelas tens\u00f5es c\u00edclicas que <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> imp\u00f5e a uma m\u00e1quina.<\/p>\n<h2>1. Defini\u00e7\u00e3o: O que \u00e9 Fadiga \u2014 e Por Que Ela \u00e9 T\u00e3o Perigosa<\/h2>\n<p>A fadiga \u00e9 insidiosa precisamente porque quebra a intui\u00e7\u00e3o de que uma pe\u00e7a \u00e9 &#8220;segura&#8221; se uma \u00fanica carga nunca exceder sua resist\u00eancia nominal. Sob <em>carga<\/em> repetida, uma tens\u00e3o inofensiva quando aplicada uma vez pode ser letal quando aplicada dez milh\u00f5es de vezes. O dano se acumula invisivelmente, a pe\u00e7a n\u00e3o d\u00e1 nenhum sinal \u00f3bvio de sofrimento e, em seguida, falha subitamente durante a opera\u00e7\u00e3o normal. Como os equipamentos rotativos ciclam seus componentes continuamente \u2014 um eixo sofre uma invers\u00e3o completa de tens\u00e3o a cada rota\u00e7\u00e3o \u2014 mesmo uma velocidade modesta <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> ou <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/misalignment\/\">desalinhamento<\/a> pode acumular uma contagem colossal de ciclos em quest\u00e3o de semanas. Compreender a fadiga \u00e9, portanto, fundamental tanto para o projeto seguro de m\u00e1quinas quanto para uma opera\u00e7\u00e3o di\u00e1ria confi\u00e1vel.<\/p>\n<h2>2. As Tr\u00eas Etapas da Falha por Fadiga<\/h2>\n<p>Uma falha por fadiga n\u00e3o \u00e9 um evento \u00fanico, mas uma sequ\u00eancia que se desenrola ao longo da vida \u00fatil da pe\u00e7a. Ela \u00e9 convencionalmente dividida em tr\u00eas etapas.<\/p>\n<h3>Est\u00e1gio 1: Inicia\u00e7\u00e3o da Trinca<\/h3>\n<ul>\n<li><strong>Localiza\u00e7\u00e3o:<\/strong> As trincas come\u00e7am em concentra\u00e7\u00f5es de tens\u00e3o \u2014 furos, cantos de raio, rasgos de chaveta, marcas de usinagem ou defeitos superficiais \u2014 onde a tens\u00e3o local \u00e9 amplificada.<\/li>\n<li><strong>Mecanismo:<\/strong> A deforma\u00e7\u00e3o pl\u00e1stica localizada repetida forma uma trinca microsc\u00f3pica, tipicamente menor que 0,1 mm.<\/li>\n<li><strong>Dura\u00e7\u00e3o:<\/strong> Em superf\u00edcies lisas e bem acabadas, a inicia\u00e7\u00e3o pode consumir de 50 a 90% da vida total por fadiga.<\/li>\n<li><strong>Detec\u00e7\u00e3o:<\/strong> Extremamente dif\u00edcil; a trinca incipiente geralmente \u00e9 indetect\u00e1vel em servi\u00e7o.<\/li>\n<\/ul>\n<h3>Est\u00e1gio 2: Propaga\u00e7\u00e3o da Trinca<\/h3>\n<ul>\n<li><strong>Processo:<\/strong> A trinca avan\u00e7a um incremento min\u00fasculo a cada ciclo de tens\u00e3o.<\/li>\n<li><strong>Taxa:<\/strong> O crescimento segue a Lei de Paris \u2014 a taxa de crescimento da trinca \u00e9 proporcional \u00e0 faixa do fator de intensidade de tens\u00e3o elevada a uma pot\u00eancia.<\/li>\n<li><strong>Apar\u00eancia:<\/strong> Uma frente de trinca suave, tipicamente semicircular ou el\u00edptica.<\/li>\n<li><strong>Marcas de praia:<\/strong> Padr\u00f5es conc\u00eantricos &#8220;de concha&#8221; na face de fratura registram as etapas sucessivas de crescimento da trinca e s\u00e3o uma marca cl\u00e1ssica da fadiga.<\/li>\n<li><strong>Dura\u00e7\u00e3o:<\/strong> Frequentemente de 10 a 50% da vida total.<\/li>\n<\/ul>\n<h3>Est\u00e1gio 3: Fratura Final<\/h3>\n<ul>\n<li>A trinca atinge um tamanho cr\u00edtico no qual o ligamento restante n\u00e3o consegue mais suportar a carga.<\/li>\n<li>A se\u00e7\u00e3o transversal residual falha subitamente e de forma catastr\u00f3fica.<\/li>\n<li>Esta zona de fratura final \u00e9 \u00e1spera e irregular, contrastando fortemente com a zona de fadiga lisa e polida.<\/li>\n<li>Ela quase sempre ocorre sem aviso pr\u00e9vio, durante uma opera\u00e7\u00e3o de outra forma normal.<\/li>\n<\/ul>\n<p>Ler uma pe\u00e7a fraturada de tr\u00e1s para frente \u2014 da zona \u00e1spera de sobrecarga, atrav\u00e9s das marcas de praia, at\u00e9 o ponto de inicia\u00e7\u00e3o \u2014 \u00e9 uma habilidade central da an\u00e1lise de falhas e frequentemente aponta exatamente qual concentra\u00e7\u00e3o de tens\u00e3o iniciou o problema.<\/p>\n<h3>Fadiga de Alto Ciclo vs. Fadiga de Baixo Ciclo<\/h3>\n<p>Os engenheiros distinguem ainda mais <strong>fadiga de alto ciclo<\/strong> (tens\u00f5es baixas, comportamento predominantemente el\u00e1stico, vidas al\u00e9m de aproximadamente 10\u2074\u201310\u2075 ciclos \u2014 o regime da maioria das pe\u00e7as de m\u00e1quinas rotativas) da <strong>fadiga de baixo ciclo<\/strong> (tens\u00f5es altas com deforma\u00e7\u00e3o pl\u00e1stica significativa a cada ciclo, vidas curtas, t\u00edpicas de ciclos t\u00e9rmicos e carregamentos transit\u00f3rios severos). Os a\u00e7os frequentemente exibem um <em>limite de resist\u00eancia \u00e0 fadiga<\/em> \u2014 uma tens\u00e3o abaixo da qual a vida por fadiga se torna efetivamente infinita \u2014 enquanto muitas ligas de alum\u00ednio e n\u00e3o ferrosas n\u00e3o possuem um verdadeiro limite de resist\u00eancia \u00e0 fadiga e eventualmente falhar\u00e3o em qualquer amplitude de tens\u00e3o.<\/p>\n<h2>3. Fadiga em M\u00e1quinas Rotativas<\/h2>\n<h3>Fadiga do Eixo<\/h3>\n<ul>\n<li><strong>Causa:<\/strong> Tens\u00f5es de flex\u00e3o causadas por desbalanceamento, desalinhamento ou cargas transversais.<\/li>\n<li><strong>Ciclo de tens\u00e3o:<\/strong> Um eixo rotativo sob uma carga de flex\u00e3o fixa sofre uma invers\u00e3o completa de tens\u00e3o a cada rota\u00e7\u00e3o (fadiga por flex\u00e3o rotativa totalmente reversa).<\/li>\n<li><strong>Locais comuns:<\/strong> Rasgos de chaveta, mudan\u00e7as de di\u00e2metro, ombreiras e ajustes com interfer\u00eancia \u2014 todos s\u00e3o concentra\u00e7\u00f5es de tens\u00e3o.<\/li>\n<li><strong>Vida t\u00edpica:<\/strong> 10\u2077 a 10\u2079 ciclos, equivalentes a anos de servi\u00e7o.<\/li>\n<li><strong>Detec\u00e7\u00e3o:<\/strong> Uma trinca transversal em propaga\u00e7\u00e3o abre e fecha uma vez por rota\u00e7\u00e3o, produzindo a assinatura caracter\u00edstica de vibra\u00e7\u00e3o de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/shaft-crack\/\">trinca no eixo<\/a> 1\u00d7 e 2\u00d7 RPM; um empenamento estacion\u00e1rio \u00e9 frequentemente confundido com isso, portanto o comportamento de fase durante a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/critical-speed\/\">velocidade cr\u00edtica<\/a> parada por in\u00e9rcia<\/li>\n<\/ul>\n<h3>Fadiga do Rolamento<\/h3>\n<ul>\n<li><strong>Mecanismo:<\/strong> Fadiga por contato rolante impulsionada por tens\u00f5es de contato hertzianas c\u00edclicas abaixo da superf\u00edcie.<\/li>\n<li><strong>Resultado:<\/strong> <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spalling\/\">Descascamento superficial<\/a> \u2014 descascamento das pistas ou dos elementos rolantes.<\/li>\n<li><strong>Vida L10:<\/strong> A vida estat\u00edstica na qual 10% de uma popula\u00e7\u00e3o de rolamentos ter\u00e1 falhado por fadiga de contato rolante; esta \u00e9 a base padr\u00e3o de projeto.<\/li>\n<li><strong>Detec\u00e7\u00e3o:<\/strong> Uma vez que o descascamento superficial come\u00e7a, caracter\u00edsticas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-fault-frequencies\/\">frequ\u00eancias de falha de rolamento<\/a> de frequ\u00eancia de defeito <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/envelope-analysis\/\">an\u00e1lise de envelope<\/a>.<\/li>\n<\/ul>\n<h3>Fadiga do Dente da Engrenagem<\/h3>\n<ul>\n<li><strong>Fadiga por flex\u00e3o:<\/strong> As trincas se iniciam no raio da raiz do dente, a regi\u00e3o de maior tens\u00e3o de um dente carregado.<\/li>\n<li><strong>Fadiga de contato:<\/strong> Superf\u00edcie <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/pitting\/\">pitting<\/a> pitting<\/li>\n<li><strong>Ciclos:<\/strong> Cada engrenamento \u00e9 um ciclo de tens\u00e3o, portanto as contagens de ciclos se acumulam rapidamente.<\/li>\n<li><strong>Falha:<\/strong> Quebra total do dente ou deteriora\u00e7\u00e3o progressiva da superf\u00edcie, ambas vis\u00edveis no <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/gear-mesh-frequency\/\">frequ\u00eancia de engrenamento<\/a> e suas bandas laterais.<\/li>\n<\/ul>\n<h3>Fadiga de Elementos de Fixa\u00e7\u00e3o<\/h3>\n<ul>\n<li>Parafusos sob carga alternada devido \u00e0 vibra\u00e7\u00e3o s\u00e3o v\u00edtimas cl\u00e1ssicas de fadiga.<\/li>\n<li>As trincas geralmente se iniciam na primeira rosca engrenada dentro da porca, o ponto de maior concentra\u00e7\u00e3o de tens\u00e3o.<\/li>\n<li>A falha \u00e9 s\u00fabita e sem aviso vis\u00edvel.<\/li>\n<li>A falha de um parafuso de fixa\u00e7\u00e3o ou de acoplamento pode levar \u00e0 separa\u00e7\u00e3o ou colapso do equipamento, tornando a fadiga de elementos de fixa\u00e7\u00e3o uma verdadeira quest\u00e3o de seguran\u00e7a.<\/li>\n<\/ul>\n<h3>Fadiga Estrutural<\/h3>\n<ul>\n<li>Estruturas, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-pedestal\/\">pedestais<\/a> e soldas suportam carregamento c\u00edclico proveniente da vibra\u00e7\u00e3o da m\u00e1quina.<\/li>\n<li>A vibra\u00e7\u00e3o cria as tens\u00f5es alternadas que impulsionam o processo.<\/li>\n<li>As trincas favorecem soldas, cantos e descontinuidades geom\u00e9tricas.<\/li>\n<li>O resultado \u00e9 a falha progressiva da pr\u00f3pria estrutura que suporta a m\u00e1quina \u2014 o que, por sua vez, piora <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/looseness\/\">folga mec\u00e2nica<\/a> e aumenta ainda mais a vibra\u00e7\u00e3o, um ciclo de feedback prejudicial.<\/li>\n<\/ul>\n<h2>4. Fatores que Governam a Vida \u00datil \u00e0 Fadiga<\/h2>\n<h3>Amplitude de Tens\u00e3o<\/h3>\n<ul>\n<li>A vida \u00fatil \u00e0 fadiga cai abruptamente \u2014 de forma n\u00e3o linear \u2014 \u00e0 medida que a amplitude de tens\u00e3o aumenta.<\/li>\n<li>Uma aproxima\u00e7\u00e3o \u00fatil \u00e9 Vida \u221d 1\/Tens\u00e3o\u207f, com n tipicamente entre 6 e 10.<\/li>\n<li>A consequ\u00eancia pr\u00e1tica \u00e9 profunda: uma pequena redu\u00e7\u00e3o na tens\u00e3o alternada pode multiplicar a vida \u00fatil v\u00e1rias vezes.<\/li>\n<li>Como a tens\u00e3o induzida pela vibra\u00e7\u00e3o \u00e9 o componente alternado, <strong>minimizar a vibra\u00e7\u00e3o estende diretamente a vida \u00fatil \u00e0 fadiga<\/strong>.<\/li>\n<\/ul>\n<h3>Tens\u00e3o M\u00e9dia<\/h3>\n<ul>\n<li>Uma tens\u00e3o constante (m\u00e9dia) sobreposta \u00e0 tens\u00e3o alternada reduz a amplitude alternada admiss\u00edvel.<\/li>\n<li>Tens\u00e3o m\u00e9dia mais alta reduz a resist\u00eancia \u00e0 fadiga (capturada pelos diagramas de Goodman, Gerber ou Soderberg).<\/li>\n<li>Componentes pr\u00e9-carregados ou pr\u00e9-tensionados s\u00e3o, portanto, mais suscet\u00edveis.<\/li>\n<\/ul>\n<h3>Concentra\u00e7\u00f5es de Tens\u00e3o<\/h3>\n<ul>\n<li>Furos, cantos, canais e roscas multiplicam localmente a tens\u00e3o nominal.<\/li>\n<li>O fator de concentra\u00e7\u00e3o de tens\u00e3o (K<sub>t<\/sub>) quantifica essa multiplica\u00e7\u00e3o.<\/li>\n<li>As trincas quase sempre come\u00e7am nessas caracter\u00edsticas.<\/li>\n<li>Raios generosos e a evita\u00e7\u00e3o de cantos vivos s\u00e3o a primeira linha de defesa.<\/li>\n<\/ul>\n<h3>Condi\u00e7\u00e3o da Superf\u00edcie<\/h3>\n<ul>\n<li>O acabamento superficial importa \u2014 superf\u00edcies lisas resistem \u00e0 fadiga muito melhor que as \u00e1speras.<\/li>\n<li>Rebarbas, arranh\u00f5es e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/corrosion\/\">corros\u00e3o<\/a> pites s\u00e3o locais prontos para inicia\u00e7\u00e3o de trincas.<\/li>\n<li>Tratamentos como jateamento de esferas e nitreta\u00e7\u00e3o induzem tens\u00e3o residual compressiva na superf\u00edcie e melhoram marcadamente a resist\u00eancia \u00e0 fadiga.<\/li>\n<\/ul>\n<h3>Ambiente<\/h3>\n<ul>\n<li><strong>Fadiga por corros\u00e3o:<\/strong> Um ambiente corrosivo acelera o crescimento de trincas e pode eliminar completamente o limite de resist\u00eancia \u00e0 fadiga.<\/li>\n<li><strong>Temperatura:<\/strong> Temperaturas elevadas geralmente reduzem a resist\u00eancia \u00e0 fadiga e adicionam intera\u00e7\u00e3o com flu\u00eancia.<\/li>\n<li><strong>Frequ\u00eancia:<\/strong> Taxas de ciclagem muito altas ou muito baixas podem alterar o comportamento \u00e0 fadiga, especialmente quando h\u00e1 corros\u00e3o ou flu\u00eancia envolvidas.<\/li>\n<\/ul>\n<h2>5. Estrat\u00e9gias de Preven\u00e7\u00e3o ao Longo do Ciclo de Vida<\/h2>\n<h3>Fase de Projeto<\/h3>\n<ul>\n<li>Elimine ou minimize concentra\u00e7\u00f5es de tens\u00e3o com chanfros generosos.<\/li>\n<li>Projete com fatores de seguran\u00e7a \u00e0 fadiga adequados (comumente 2\u20134).<\/li>\n<li>Selecione materiais com boas propriedades \u00e0 fadiga.<\/li>\n<li>Use an\u00e1lise de elementos finitos para localizar regi\u00f5es de alta tens\u00e3o e mantenha furos e entalhes fora delas, sempre que poss\u00edvel.<\/li>\n<\/ul>\n<h3>Fabrica\u00e7\u00e3o<\/h3>\n<ul>\n<li>Melhore o acabamento superficial em pe\u00e7as cr\u00edticas e altamente tensionadas.<\/li>\n<li>Aplique tratamentos superficiais como jateamento de esferas e cementa\u00e7\u00e3o.<\/li>\n<li>Use tratamento t\u00e9rmico adequado para desenvolver resist\u00eancia \u00e0 fadiga \u00f3tima.<\/li>\n<li>Evite marcas de usinagem que corram perpendicularmente \u00e0 dire\u00e7\u00e3o principal da tens\u00e3o.<\/li>\n<\/ul>\n<h3>Opera\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Reduza a vibra\u00e7\u00e3o:<\/strong> Bom <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento\/\">balanceamento<\/a> e precis\u00e3o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/laser-shaft-alignment\/\">alinhamento do eixo<\/a> cortam as tens\u00f5es alternadas na fonte.<\/li>\n<li><strong>Evite sobrecarga:<\/strong> Opere dentro dos limites de projeto.<\/li>\n<li><strong>Previna a resson\u00e2ncia:<\/strong> Mantenha-se afastado das velocidades cr\u00edticas, onde <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/resonance\/\">resson\u00e2ncia<\/a> pode multiplicar a tens\u00e3o din\u00e2mica v\u00e1rias vezes.<\/li>\n<li><strong>Controle a corros\u00e3o:<\/strong> Revestimentos protetores e inibidores.<\/li>\n<\/ul>\n<h3>Manuten\u00e7\u00e3o e Monitoramento<\/h3>\n<ul>\n<li>Inspecione periodicamente em busca de trincas usando inspe\u00e7\u00e3o visual e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/non-destructive-testing\/\">ensaios n\u00e3o destrutivos<\/a> m\u00e9todos.<\/li>\n<li>Monitore a vibra\u00e7\u00e3o para o primeiro sinal de alerta de uma trinca em desenvolvimento.<\/li>\n<li>Substitua os componentes no final de sua vida \u00fatil calculada por fadiga, em vez de esperar pela falha.<\/li>\n<li>Repare danos superficiais prontamente, pois um risco fresco \u00e9 uma futura origem de trinca.<\/li>\n<\/ul>\n<p>Como a vibra\u00e7\u00e3o <em>\u00e9<\/em> a tens\u00e3o alternada da qual a fadiga se alimenta, manter a vibra\u00e7\u00e3o baixa \u00e9 uma das medidas de preven\u00e7\u00e3o de fadiga mais custo-eficazes dispon\u00edveis. No campo, um instrumento port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> permite que um t\u00e9cnico balanceie um rotor em seus pr\u00f3prios rolamentos e verifique se a amplitude residual de 1\u00d7 diminuiu, reduzindo diretamente a tens\u00e3o de flex\u00e3o c\u00edclica que um eixo suporta a cada revolu\u00e7\u00e3o e estendendo sua vida \u00fatil por fadiga. Para colocar n\u00fameros nessa compensa\u00e7\u00e3o, uma <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/fatigue-life-calculator\/\">Calculadora de vida \u00fatil por fadiga S-N \/ Basquin<\/a> mostra o qu\u00e3o abruptamente a vida \u00fatil aumenta \u00e0 medida que voc\u00ea reduz a amplitude da tens\u00e3o, e um <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/centrifugal-force-unbalance\/\">calculadora de for\u00e7a centr\u00edfuga devido ao desbalanceamento<\/a> quantifica a for\u00e7a c\u00edclica que uma determinada quantidade de desbalanceamento imp\u00f5e aos rolamentos e ao eixo.<\/p>\n<p>Em resumo, a fadiga mec\u00e2nica \u00e9 um modo de falha fundamental que transforma o dano c\u00edclico acumulado em fratura s\u00fabita, muitas vezes catastr\u00f3fica. Eliminar concentra\u00e7\u00f5es de tens\u00e3o no projeto, escolher os materiais e tratamentos adequados e, crucialmente, manter a vibra\u00e7\u00e3o baixa por meio de bom balanceamento e alinhamento s\u00e3o as alavancas que a previnem e garantem uma vida longa e confi\u00e1vel para as m\u00e1quinas.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about mechanical fatigue, progressive damage from repeated stress cycles causing cracks and failures in shafts, gears, and structures, even at stresses below yield strength.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-116","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/116\/revisions"}],"predecessor-version":[{"id":101382,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/116\/revisions\/101382"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}