Problem involving temp changes in stress and strain topic.

  • Thread starter Nicolesin
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1. Knowing that a 0.5 mm gap exists when the temperature is 20 degree celsius,
Determine the tempature at which the normal stress in the aluminum bar will be equal to -90 MPa,And the corresponding exact length of the aluminum bar.




The Attempt at a Solution


I am not familiar with this topic. Could anyone also show me some of their thing process . Thanks in advance.
 

Answers and Replies

  • #2
SteamKing
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Do you know how much expansion occurs in metals with temperature change?
Hint: it involves alpha.

Do you know how the length of a bar changes when an axial load is applied?
 

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