A force of P = 20 N is applied to a lever at the end of a co…

A force of P = 20 N is applied to a lever at the end of a composite shaft. Sleeve (1) has a polar moment of inertia of 104,000 mm4 and a shear modulus of 1.4 GPa. Core (2) has a polar moment of inertia of 27,500 mm4 and a shear modulus of 1.2 GPa. Determine the torque produced in core (2). Let a = b = 250 mm.

You are considering a beam design that has dimensions of b =…

You are considering a beam design that has dimensions of b = 16 in., h = 24 in., and d = 21.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 2,500 psi, and the yield strength of the reinforcement is 60,000 psi. What cross-sectional area of reinforcement is needed to achieve a strain in the reinforcement of 0.0075?