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erichling

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## Homework Statement

Based on the data in Table 1.3 of Hertzberg, estimate the elastic modulus of an iron single crystal along the [2 1 -3] direction. Express your answer in GPa in the form yyy.y

S11=0.80, S12=-0.28, S44=0.86 (10^-11Pa^-1)

## Homework Equations

1/E=S11-2((S11-S12)-.5*S44)(l1^2*l2^2+l2^2*l3^2+l1^2l3^2)

## The Attempt at a Solution

1/E=0.80-2((0.80-(-.28)-.5(0.86))(.25)