I am taking a lab course in mechanical engineering and in an experiment wherein we graph a stress strain curve, the TA mentioned true stress and strain. I know what these values are and I even know how to calculate it given the engineering stress and strain, but I just don't understand why it is necessary in the first place to calculate the true stress and strain. Can anyone help?(adsbygoogle = window.adsbygoogle || []).push({});

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# Why use true stress/strain?

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