Elastic limit for thermal stress?

@mvivekanandan-OjHrf9 • Oct 26, 2024

Oct 26, 2024

1.7K

while there is a elastic limit for tensile ,compressive and shear stresses, is there a elastic limit for thermal stress?where the solid comes back to its original state when the temperature is brought back to original temperature?

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Sarathkumar Chandrasekaran

@sarathkumar-FEGRPw • Sep 7, 2013

Write in detail so that we can help you.
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m.vivekanandan

@mvivekanandan-OjHrf9 • Sep 7, 2013

SarathKumar Chandrasekaran
Write in detail so that we can help you.
after the tensile testing of a material ,we plot a graph with stress and strain where we find the elastic limit of the material i.e the limit where material return back to original state when the load applied is removed,likewise we have elastic limit for compressive and shear stresses.like wise is there a elastic limit for thermally induced stresses(stress caused in the material due the temperature change in surrounding)?
hope it is clear now.
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Siddhant Mukherjee

@siddhant-4mGRnx • Sep 9, 2013

@#-Link-Snipped-# : Before answering to your question, let me throw some light on what thermal stres actually is. Thermal stresses are induced in a body if and only if you restrain it to expand or contract under temperature changes. If a body kept on a table and heated, there will be no stresses developed in it. So, thermal stress is nothing but a normal or shear stress developed if you restrain a body's thermal expansion or contraction. Therefore, the elastic limits will remain same unless you increase the temperature high or low enough to change the properties of material.

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m.vivekanandan

@mvivekanandan-OjHrf9 • Sep 10, 2013

thank you,got it
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