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  3. suppose a 50 mm x 50 mm square of graphitereinforced...

Question: suppose a 50 mm x 50 mm square of graphitereinforced...

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Suppose a 50 mm x 50 mm square of graphite-reinforced material with its fibers oriented at 30° with respect to the + x axis is somehow restrained from any shear deformation but is free to deform in extension in the x and y directions. The square is compressed by a stress of 25 MPa in the y direction. (a) What is the deformation of the element in the x and y directions? (b) What shear stress is required to maintain this zero shear deformation condition?

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