Q.3) The original and deformed geometries of a Plastic block subjected to axial and shear stresses is shown below. Determine the average normal strains along diagonals AB and CD. Also find shear strain Yxy at each of its corners A, B, C and D. D' 107 mm A D 91.5° 100 mm 5 mm B' B 100 mm 12 mm

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50% Due to loading, the plate is deformed into the dashed shape shown in the figure. Assume a = 32 in., b= 40 in., δ1= 0.225 in., δ2= 0.075 in. Determine the average normal strain along the side AB? Determine the average shear strain in the plate at A relative to the horizontal and vertical axes?

Mohr’s circle is shown for a point in a physical object that is subjected to plane stress. Each grid square is 600 psi in size. (a) Determine the stresses σx, σy, and the magnitude of τxy and show them on a stress element. (b) Determine the principal stresses and the magnitude of the maximum in-plane shear stress acting at the point and show these stresses on an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16).