PROBLEM 1. A locked door handle is composed of a solid circular shaft AB with a...
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PROBLEM 1. A locked door handle is composed of a solid circular shaft AB with a diameter of b=113 mm and a flat plate BC with a force P = 80 N applied at point C as shown. Let c-486 mm, d=135 mm, and e=155 mm. (Treat the handle as if it were a cantilever beam.) a. Determine the maximum torsional shear stress Tmax experienced by the solid shaft in section m-m. b. To reduce cost, the manufacturer of the door handle would like to change the solid shaft AB to a hollow one. If the force P and the maximum shear stress remain constant, design a hollow tube that replaces the solid one if the outer diameter is 127 mm. c. If the maximum allowable shear stress is Tallow-151 MPa, determine the maximum force P that can be applied to the door handle. (Recall that piece AB is now a hollow tube.) B PROBLEM 1. A locked door handle is composed of a solid circular shaft AB with a diameter of b=113 mm and a flat plate BC with a force P = 80 N applied at point C as shown. Let c-486 mm, d=135 mm, and e=155 mm. (Treat the handle as if it were a cantilever beam.) a. Determine the maximum torsional shear stress Tmax experienced by the solid shaft in section m-m. b. To reduce cost, the manufacturer of the door handle would like to change the solid shaft AB to a hollow one. If the force P and the maximum shear stress remain constant, design a hollow tube that replaces the solid one if the outer diameter is 127 mm. c. If the maximum allowable shear stress is Tallow-151 MPa, determine the maximum force P that can be applied to the door handle. (Recall that piece AB is now a hollow tube.) B
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