bending moment of 4 kN m is found to cause elastic failure of a solid circular...

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Mechanical Engineering

bending moment of 4 kN m is found to cause elastic failure of asolid circular shaft. An exactly similar shaft is now subjected toa torque T. Determine the value of T which will cause failure ofthe shaft according to the following theories:
(a) Maximum principal stress;
(b) Maximum principal strain;
(c) Maximum shear strain energy. ?= 0.3.)
Which of these values would you expect to be the most reliable andwhy?

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