P12.042 Consider a point in a structural member that is subjected to plane stres

Question

P12.042 Consider a point in a structural member that is subjected to plane stress. Normal and shear stresses acting on horizontal and vertical planes at the point are shown. (a) Determine the principal stresses (?p1 > ?p2) and the maximum in-plane shear stress ?max acting at the point. (b) Find the smallest rotation angle ?p (counterclockwise is positive, clockwise is negative) that will rotate to principal directions. Then show these stresses in an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16)

Explanation / Answer

a) 30 + 16 = 46 MPa 30 -16 = 14 MPa i know only that much .. may help you

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