60 N. m 1) Knowing that each portion of the shafts AB, BC, and 144 N m CD consist of a solid circular rod, determine; 4S N m. dcp=21 mm (a) the shaft in which the maximum shearing stress occurs Ans: Shaft CD dnc = 18 mm (b) the magnitude of that stress. B dAR = 15 mm Ans: 85.8 MPa

The cantilever beam AB will be installed so that the 60-mm side forms an angle β between 0 and 90° with the vertical. The 660-N vertical force P is applied at the center of the free end of the beam. Determine the value of β for which the normal stress at point a is a maximum and the corresponding value of that stress. (Round the final answer to two decimal places.)

UNIVERSITY of Prince Edward ISLAND i mm GGGG 54 mm T₁-1.2 kN-m 1-08 kNm 0 154 T-0.1 kN m 40 mm ASSIGNMENT 2.6 Under normal operating conditions, the electric motor exerts a torque of 2.4 kN m on shaft AB. Knowing that each shaft is solid, determine the maximum shearing stress in (a) shaft AB, (b) shaft BC, (c) shaft CD. ASSIGNMENT 2.7 Two shafts, each of -in. diameter, are connected by the gears shown. Knowing that G=11.2 x 10 psi and that the shaft at F is fixed, determine the angle through which end

A 0.75" diameter solid steel shaft is connected by the steel bolted coupling shown. The maximum allowable shear stress in the steel is 18 ksi (shaft and bolts). The coupling consists of steel bolts that are 1/8" diameter and the bolt holes are equally spaced and centered on a 4" diameter circle (2" radius from the center of the shaft to the center of a bolt hole). Determine a) The maximum torque that the shaft can carry Ans: /,491"* b) The number of bolts required for the torque in part a). Assume the bolts fail by shearing at the coupling interface and the shear stress is uniform across the bolt's cross sectional area.

For the state of plane stress shown, use Mohr’s circle to determine (a) the largest value of τxy for which the maximum in-plane shearing stress is equal to or less than 12 ksi, (b) the corresponding principal stresses.