Find: a$)$ Stress element @ A

b$)$ Stress element @ B

c$)$ Principal Stress Element & Max Shear Stress Element at both A & B

d$)$ The minimum factor of safety against yield by both Tresca & von Mises

$($for part d$)$ do not approximate or neglect the transverse shear, and be sure to show the

critical stress cube properly oriented on the cut surface of the tube as well as the critical stress

element$).$

PLEASE SOLVE ALL PARTS AND READ CAREFULLY