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## Homework Statement

I have used a strain rosette with two gauges at 0 and 90 degrees to find strain on a beam under force and an trying to plot Mohr's circle for the problem. As the gauges are at right angles finding the xx and yy strain is easy but I am lost about how to find the xy strain, which I need to plot the circle. How can I find xy from the xx and yy strain values?

## Homework Equations

## The Attempt at a Solution

I have got xx and yy but I honestly have no idea how to find xy[/B]

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