Question

A point on the surface of a 5 cm diameter round bar has a bending moment of 180 N-m in tension. It also has Torque of 140 N-m producing a positve shear stress. a) What are the principal stresses and the maximum shear stress? Draw Mohr's circle. Show the stresses on an element and indicate the angles of rotation? b) Dimension and select an appropriate material for a key on this shaft

Answer 1

as required above the principle stresses and maximum shear stress are calculated and shown on mohr circle ,the dimensions and selection will be taken based on the failure criteria as different principle stress is taken for different theory ,i hope you will understand the concept ,a thumbs up will be appreciated,thank you

Given Bending moment y = 180 Nam 10 тис. т - Tao rn on the element it will shown as Bending stress to and sheartress as followe Car Do = 14.6671 mpa = 5.7041 mpa Oy - nr. 6.624 mpa -1.957ampa Morinum shear Alreif T max = J A S + Tag = 9.990 mpa, selection of an of failure" and Calculated. By dimensions based material will be based on contain Theory also based on this dimensions also will be using the above principle stress we can obtain on the respectue Theory of Pailare.