Question

The thermal stress in terms of modules of elasticity(E), co-efficient of thermal expansion(\(\alpha\)), Temperature(T) is given by

• A. \(E\alpha T\)
• B. \(ET/\alpha\)
• C. \(E\alpha/T\)
• D. \(1/E\alpha T\)

Hint:

Thermal stress only develops when thermal expansion or contraction is constrained.
The formula is a direct combination of Hooke's Law ($\sigma = E\epsilon$) and the thermal expansion strain equation ($\epsilon = \alpha T$).

Answer 1

The Correct Option is A