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turpy

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## Homework Statement

For a crystalline metal material

- Elastic modulus E

- Poisson ratio v

- A table with test data of stresses vs. total strains, from a monotonic uniaxial tension test, which generates a stress-strain curve.

How would you use this data to find the corresponding pure shear stress-strain curve?

## Homework Equations

ε_elastic = (σ/E)

γ_elastic = (τ/G)

G=E/[2*(1+v)]

## The Attempt at a Solution

Using the crystal structure of metal, the normal stresses from the table could be converted to shear stresses via the τ_crss equation (http://virtualexplorer.com.au/special/meansvolume/contribs/wilson/Critical.html )

Then, the elastic shear strains can be obtained from τ/G. But what about the plastic shear strains? This is where I'm stuck. Hints/help would be highly appreciated!

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