Combined Normal Stresses A tool used for compressing a coil spring to allow its installati...

Combined Normal Stresses A tool used for compressing a coil spring to allow its installation in a car is shown in Figure A force of 1200 N is applied near the ends of the extended lugs, as shown. Compute the maximum tensile stress in the threaded rod. Assume a stress concentration factor of 3.0 at the thread root for both tensile and bending stresses. Then, using a design factor of 2 based on yield strength, specify a suitable material for the rod.