Name:

CCE $203-$ HW $7\mathrm{.}5-7\mathrm{.}6$

Date:

You were walking around Provo when you find a rectangular steel plate that is $\frac{5}{8}$ inches thick. You place the steel plate in uniform normal stresses ${}_x$ and ${}_y,$ as shown in the figure. If Strain gauges A and B are placed on the plate in the x and y directions as shown in the figure and read ${}_x=0\mathrm{.}00065($elongation$)$ and ${}_y=0\mathrm{.}00040($elongation$),$ what are the stresses ${}_x$ and ${}_y$ and the change in the thickness $(t)$ of the plate? $E=30{10}^6$ and $v=0\mathrm{.}3.$

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