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Unformatted text preview: horizontal and vertical planes at the point are shown. (a) Determine the principal stresses and the maximum in-plane shear stress acting at the point. (b) Show these stresses on an appropriate sketch (e.g., see Fig. 12-15 or Fig. 12-16) (c) Compute the absolute shear stress at the point. 29) 30) 31) 32) 12.42 At a point on the free surface of a stressed body, a normal stress of 64 MPa (C) and an unknown positive shear stress exist on a horizontal plane. One principal stress at the point is 8 MPa (C). The absolute maximum shear stress at the point has a magnitude of 95 MPa. Determine the unknown stresses on the horizontal and vertical planes and the unknown principal stress at the point. For practice 12.19 12.35 12.43...
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- Winter '09