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If the specimen is deformed plastically beyond the yield stress in one direction, e.g., tension and then after unloading it is loaded in the opposite direction, e.g., compression, it is found that the yield stress is less than the original yield stress. This dependence of yield stress on direction loading is called ____________

If the specimen is deformed plastically beyond the yield stress in one direction, e.g., tension and then after unloading it is loaded in the opposite direction, e.g., compression, it is found that the yield stress is less than the original yield stress. This dependence of yield stress on direction loading is called ____________ Correct Answer bauschinger effect

Bauschinger effect is the phenomena which account for the difference in yield strength of the material in different directions of loading and unloading path. Following diagram show the effect. Strain hardening is a phenomenon in which the required stress increases for deformation with increases in strain. Residual stress is the remaining stress in the material after unloading. Nabarro–Herring effect is associated with creep.

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From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
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S. The true stress-true strain curve in tension and compression are identical.
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