My statics text says the following:(adsbygoogle = window.adsbygoogle || []).push({});

The relationship between axial stress and strain can be represented by the equation

[tex]\sigma = E\epsilon[/tex]

"At higher levels of stress, the following nonlinear equation may be a better fit to describe the correlation between axial stress and strain:

[tex]\sigma = E e^{\epsilon-1}[/tex]

"

Where [itex]\sigma[/itex] is force per unit area, [itex]\epsilon[/itex] is axial strain and E is Young's modulus.

Out of curiosity, at what level of stress does the second equation begin to better represent the situation than the first?

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# Statics: Axial Load and Strain

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