(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

the graph below shows the behaviour of a sample of a metal when it is stretched until it starts to undergo plastic deformation.

what is the total work done in stretching the sample from zero extension to 12.0mm?

simplify calculation by treating the region xy as a straight line

2. Relevant equations

3. The attempt at a solution

i have used the formula total work done = area under the graph f-e

550x12x10^-3x0.5=3.3

which im wrong.

wouldnt figure out the problem

the ans is 3.55J

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# Homework Help: Plastic deformation

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