Question: 2. (a) Explain with appropriate figures the failure criteria based on maximum shear stress theory. Also draw its Mohr circle representation. 15 (b) A

2. (a) Explain with appropriate figures the failure criteria based on maximum

2. (a) Explain with appropriate figures the failure criteria based on maximum shear stress theory. Also draw its Mohr circle representation. 15 (b) A cylindrical shaft made of steel for which the tensile yield strength o = 550 MPa is subjected to static loads consisting of a bending moment of 700 kNmm and torsion of 400 kNmm. Determine the diameter of shaft for a factor of safety equal to 1.5 if E= 200 GPa and Poisson's ratio v = 0.25; Adopt maximum shear stress failure theory. 15 (c) Draw a network for the following situations : A is prerequisite on D (ii) B is prerequisite on D and E (iii) C is prerequisite on E (iv) D is prerequisite on F (v) E is prerequisite on F. 10

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