A5-ton elevator is supported by a standard steel cable of 2.5-in. 2 cross section and an effective modulus of elasticity of 12 * 10 6 psi. as the elevator is descending at a constant 400 ft/min, an accident causes the top of the cable, 70 ft above the eleva- tor, to stop suddenly. estimate the maximum elongation and maximum tensile stress developed in the cable

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.