I'm trying to answer a question regarding tensile testing and how the real tests may vary from theoretically. I'm thinking temperature but think I may be missing something more obvious?
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$\begingroup$ What is a theoretical tensile test ? $\endgroup$– blacksmith37Commented Jun 2, 2022 at 19:02
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$\begingroup$ Even the real results vary between loading and unloading. $\endgroup$– Solar MikeCommented Jun 2, 2022 at 19:06
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1 Answer
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Temperature effects are negligible within +/- 50 degrees F of ambient.
Most theoretical predictions of tensile strength do not include the effects of dislocation travel which is the primary source of ductility in engineering metals, and greatly reduces their strength from what one would calculate assuming perfect crystalline structure.
Furthermore, theoretical predictions of tensile strength cannot take into account the presence of manufacturing flaws in the test samples.
answered Jun 2, 2022 at 19:08