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The effect of the stress riser is much more pronounced in a brittle material than a ductile material. Which of the following is not the correct explanation for this behavior?

The effect of the stress riser is much more pronounced in a brittle material than a ductile material. Which of the following is not the correct explanation for this behavior? Correct Answer The toughness of brittle material is much more than ductile material

Strain hardening occurs in ductile material with an increase in strain. Brittle material does not show strain hardening because before reaching the level of hardening it fails. Redistribution of stress occurs by the propagation of dislocation in the material. Brittle material does not show such behavior, but ductile material does show. Finally, toughness is defined as the area under the stress-strain curve, which is more in ductile material not in a brittle material, so the toughness of ductile material is more than brittle material.

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