Normal stress is calculated dividing the reaction by the cross-sectional area. Is this approach valid for any point of a structural member? Why or why not? To answer this question, consider the loading point, cross- sectional shape, etc.

The following shaft is composed of two materials, both rigidly bonded. The data is provided in the table: Determine: The maximum torque that can be applied based on the maximum stresses of each material. The total deformation of the shaft with the torque from the previous section. The maximum torque that can be applied if the maximum deformation of the shaft is 2.50 rad.

Your answer is incorrect. An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 500 mm. The cross-sectional dimensions of the beam areb1 = 35 mm, d1= 115 mm, b2= 21 mm, d2 = 21 mm, and a =7 mm. For this material, the allowable tensile bending stress is 15 MPa, and the allowable compressive bending stress is 14 MPa. Determine the largest moment M that can be %3D %3D %3D %3D %3D %3D applied as shown to the beam. b2 a 不 d2 d1 b1 Answer: N-m M% =

Prove the following relations by considering stresses acting on a material element in triaxial loading.