Question: 3 ) A bar is fixed on both side, with length L and temperature T . The bar in the figure is subject to a

3) A bar is fixed on both side, with length L and temperature T. The bar in the figure is subject to a 50 F
temperature increase. It has a coefficient of
thermal expansion of a =8 x 10-6( F -1) and
has a modulus of E =28 x 106 psi. Calculate
the normal stress along the bars axis. Is the
bar in tension or compression?

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