Design the maximum permissible value of W using a factor of safety of 2, based on the following conditions of the structure below. a. Ultimate normal stress in members CD and EF is 160 ksi. b. Ultimate shear stress in pins B, D, F, and H is 110 ksi. c. Ultimate bearing stress on member ACEG is 190 ksi. d. Ultimate bearing stress on support plates at B and H is 220 ksi.

The compound shaft consists of a solid aluminum segment (1) and a hollow brass segment (2) that are connected at flange B and securely attached to rigid supports at A and C. Aluminum segment (1) has a diameter of 0.55 in., a length of L₁ = 40 in., a shear modulus of 3800 ksi, and an allowable shear stress of 5.8 ksi. Brass segment (2) has an outside diameter of 0.45 in., a wall thickness of 0.15 in., a length of L₂ = 30 in., a shear modulus of 6400 ksi, and an allowable shear stress of 8.2 ksi. Determine: (a) the allowable torque Te that can be applied to the compound shaft at flange B. (b) the magnitudes of the internal torques in segments (1) and (2). (c) the rotation angle of flange B (relative to support A) that is produced by the allowable torque TB. L₁ L2 TB (1) Answer: (a) TB= (b) T₁ = T2= (c) OB= B lb-ft lb-ft lb-ft rad (2) C

The thin rectangular plate is uniformly deformed such that Ex = 220E, Ey= -680 uE, and yy = 870 urad. If a = 35 mm, determine (a) the normal strain &, in the plate. (b) the normal strain &, in the plate. (c) the shear strain ynt in the plate. B D. a a a a a a a a a Answers: (a) En= i HE (b) Et= i HE (c) Ynt = i prad

If the maximum bending stress at section a–a is not allowed to exceed an allowable stress of 220 MPa, determine the maximum allowable force P that can be applied to the end E.