A hollow shaft with an outside diameter of D=54 mm and an inside diameter of d = 40 mm is subjected to torque T. The shaft is made of aluminum (E = 90 GPa; v=0.33 ). A strain gage is mounted on the shaft at the orientation shown in the figure (8= 30 °). Assume T = 900 N.m. B Determine the shear stress on the element (tau). 48.8 MPa 71.8 MPa 30 MPa 41.6 MPa 77 MPa
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