*11-84. Determine, to the nearest millimeter, the smallest allowable diameter of the shaft which is subjected to the concentrated forces. There is a journal bearing at A and a thrust bearing at B. The allowable bending stress is stm = 150 MPa. 0.5m- -0.4 m- a6 m 12 kN 20 kN

If the internal moment acting on the cross-section is 800 N.m, determine the maximum tensile and compressive bending stresses acting in the beam. Sketch the stress-distribution acting on the cross-section.

The man has a mass of 100 kg and center of mass at G. If he holds himself in the position shown, determine the maximum tensile and compressive stress developed in the curved bar at section a–a. He is supported uniformly by twobars, each having a diameter of 25 mm. Assume the floor is smooth. Use the curved-beam formula to calculate the bending stress.

W= 325 lbs/ft a= 6.8 ft

The strut has a square cross section a by a and is subjected to the bending moment M applied at an angle as shown. Determine the maximum bending stress in terms of a, M, and u. What angle u will give the largest bendingstress in the strut? Specify the orientation of the neutral axis for this case.

The shaft of radius c is subjected to a distributed torque t, measured as torque>length of shaft. Determine the angle of twist at end A. The shear modulus is G.

The shaft is subjected to the concentrated forces as shown in the figure below. There is a journal bearing at A and a thrust bearing at B. The allowable bending stress is σallow = 210 MPa. Determine, to the nearest mm, the smallest allowable diameter of the shaft.