Question
Choose best Ansr
Torsional moments induce shear stresses along the cross-sections of shafts. Due to the complementary property of shear stress, there is also a stress produced. A failure of a wooden shaft due to this type of stress is illustrated to the right. longitudinal shear axial/normal stress twisting splitting Your client is requesting a steel that has the largest elastic stress (i.e., proportional limit stress) as is feasible. You decide to strain harden the material to achieve a larger elastic region. What stress should you take the material to (before unloading it) to achieve the desired result? Yield stress Ultimate stress True fracture stress [Engineering] fracture stress You are asked to design a pipe to stay below a certain allowable stress limit. You are not given guidance as to the inner or outer diameter of the pipe. Explain in complete sentences how you would approach the problem of sizing the pipe (think about practical limitations, sources for information, etc.) The assembly to the right is comprised of a red brass (C83400) pipe surrounding a magnesium (Am 1004-T61) circular rod. If the assembly is subjected to an internal torque (T), as shown, which metal will experience the higher shear stress as point A? Red Brass Magnesium Both will be the same Not enough information
Explanation / Answer
1) longitudinal shear stress because there is a twisting takes place which produces the twisting effect due to which the whole stress produces in the longitudinal region there is no axial stress.
2)ultimate stress becuase the ultimate stress region is the region to enhance the elasticity of any material.
3)the thickness shoud be greator than the inside diameter and the pipe should not be so long also there is the specific elastic and strong material used for specific elasticity.
4)magnesium will experience the highest stress because the is discontinuation in the stress in case of magnesium while due to continuation of strong torque the brass also exerts some of its stress to magnesium.