A solid steel cube constrained on all six faces is heated so that the temperatu

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A solid steel cube constrained on all six faces is heated so that the temperature rises uniformly by âˆ†T. If the thermal coefficient of the material is Î±, Young's modulus is E and the Poisson's ratio is Ï… , the thermal stress developed in the cube due to heating is

Options:

A . -[Î±(âˆ†T)E]/(1 - 2Ï…)

B . -[2Î±(âˆ†T)E]/(1 - 2Ï…)

C . -[3Î±(âˆ†T)E]/(1 - 2Ï…)

D . -[Î±(âˆ†T)E]/3(1 - 2Ï…)

Answer: Option A

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