When is thermal stress induced?

Q.  Which stress is induced in a member, when expansion or contraction due to temperature variation is prevented?
- Published on 21 Sep 15

a. Compressive stress
b. Tensile stress
c. Thermal stress
d. None of the above

ANSWER: Thermal stress

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    Discussion

  • Sravanthi   -Posted on 24 Nov 15
    - Temperature or thermal stress is induced when expansion or contraction due to temperature variation is prevented.

    - The formula used to calculate temperature variation is et = E α t,

    here α = coefficient of thermal expansion, t = temperature variation, E is Young's modulus.

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