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In the stress-strain curve, loading and unloading of the material in the plastic region follow the same path.

In the stress-strain curve, loading and unloading of the material in the plastic region follow the same path. Correct Answer False

The material in the plastic regions does not take its original shape on unloading. So the shape of the stress-strain curve is non-linear, and the path is different on loading and unloading. The following diagram will clear the picture.

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