Question 1

Termal kuchlanish nima?

Accepted Answer

Thermal stress develops when a material is heated or cooled but cannot freely expand or contract. For a fully constrained member: σ = E × α × ΔT, where E is elastic modulus, α is the coefficient of thermal expansion (CTE), and ΔT is the temperature change.

Question 2

Issiqlik kengayishi koeffitsienti (CTE) nima?

Accepted Answer

CTE (α) measures how much a material expands per degree of temperature change. Steel: ~12×10⁻⁶/°C, Aluminum: ~23×10⁻⁶/°C, Copper: ~17×10⁻⁶/°C, Stainless steel: ~17×10⁻⁶/°C.

Question 3

Termal kuchlanish qachon yuzaga keladi?

Accepted Answer

Termal kuchlanish kengayish cheklab qo'yilganda yuzaga keladi: ikki uchidan mahkamlangan quvurlar, uzluksiz payvandlangan relsslar, turli xil materiallar birlashtirilganda, harorat gradientlari mavjud qalin kesimlarda yoki erkin harakatlanishdan to'sib qo'yilgan istalgan konstruktsiyalarda.

Question 4

Termal kuchlanishni qanday kamaytirish mumkin?

Accepted Answer

Quvurlarda kengayish birikmalari yoki ilmoqlardan foydalaning, siljib turuvchi tayanch-dayanklar qo'llang, issiqlik kengayish koeffitsienti (CTE) pastroq materiallarni tanlang, issiqlik o'tkazmaslik yordamida ΔT ni kamaytiring yoki moslashuvchan ulanishlardan foydalaning. Bimetallik tizimlarda CTE qiymatlarini iloji boricha yaqinlashtirib moslang.

Question 5

Qizdirilganda termal kuchlanish doimo siquvchi bo'ladimi?

Accepted Answer

Ha, bir xil qizdirilgan to'liq cheklab qo'yilgan element uchun. Material kengayishga harakat qiladi, lekin kengaya olmaydi, shuning uchun ichki siquvchi kuchlanish yuzaga keladi. Sovitish esa cho'zuvchi kuchlanishga olib keladi. Ishorasi kengayish yoki qisqarishning cheklanishiga bog'liq.

Material	E (GPa)	α (×10⁻⁶/°C)
Carbon Steel	200	12
Zanglamaydigan po'lat 304	193	17.3
Aluminum 6061	69	23.6
Copper	117	16.6
Titanium	114	8.6
Brass	100	19

Issiqlik kuchlanishi kalkulyatori

Results

Mahkamlangan elementlarda issiqlik kuchlanishi

Keng tarqalgan CTE qiymatlari

Thermal Stress Calculator | σ = E·α·ΔT | Free Online Tool

Published by Nikolai Shelkovenko on Fevral 15, 2026 Fevral 15, 2026

Results

Mahkamlangan elementlarda issiqlik kuchlanishi

Keng tarqalgan CTE qiymatlari

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