What does the following stress strain curve represents.

The above stress strain curve represents.

a. ideal elastic material
b. ideal plastic material with elastic region
c. rigid ideal plastic material
d. none of the above

Correct Answer : c. rigid ideal plastic material

Explanation :

In above curve, according to Hook's law there is no any elastic region. Stress does not changes with respect to strain. Thus the curve represents rigid ideal plastic material.
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