- #1

sassora

- 15

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## Homework Statement

Deducing what the area under the stress-strain curve shows.

There are four option in the attached image. I can discount work done by considering the units. The remaining ones seem plausible, but only one is true.

## Homework Equations

stress = force / area; strain = proportional extension in length

## The Attempt at a Solution

stress units are N / m

^{2}

strain units are unitless

The units of the area could be N / m

^{2}but Nm / m

^{3}units are also consistent. Work done / Volume variants seem plausible.

If the line was y = mx then then area underneath would be (1/2)mx

^{2}. Here we have stress = young's modulus . strain.

I would have thought the area under the line is (1/2) young's modulus . strain

^{2}. Not sure that helps.

#### Attachments

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