The figure shows a cutaway view of an assembly in which a solid bronze [G = 6,500 ksi] rod (1) is fitted inside of an aluminum alloy [G = 4,000 ksi] tube (2). The tube is attached to a fixed plate at C, and both the rod and the tube are welded to a rigid end plate at A. The rod diameter is d₁ = 1.65 in. The outside diameter of the tube is D2 = 3.6 in. and its wall thickness is t2 = 0.155 in. Overall dimensions of the assembly are a = 42 in. and b = 12 in. The allowable shear stresses for the bronze and aluminum materials are 9500 psi and 7800 psi, respectively. Further, the rotation angle of end B must be limited to a magnitude of 4.9°. Based on these constraints, what is the maximum torque Tg that can be applied at end B?
The figure shows a cutaway view of an assembly in which a solid bronze [G = 6,500 ksi] rod (1) is fitted inside of an aluminum alloy [G = 4,000 ksi] tube (2). The tube is attached to a fixed plate at C, and both the rod and the tube are welded to a rigid end plate at A. The rod diameter is d1 = 1.65 in. The outside diameter of the tube is D2 = 3.6 in. and its wall thickness is t2 = 0.155 in. Overall dimensions of the assembly are a = 42 in. and b = 12 in. The allowable shear stresses for the bronze and aluminum materials are 9500 psi and 7800 psi, respectively. Further, the rotation angle of end B must be limited to a magnitude of 4.9°. Based on these constraints, what is the maximum torque TB that can be applied at end B?
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