A solid circular shaft of diameter $$d$$ is subjected to a combined bending moment, $$M$$ and torque, $$T.$$ The material property to be used for designing the shaft using the relation $${{16T} \over {\pi {d^3}}}\sqrt {{M^2} + {T^2}} $$

Torsional yield strength $$\left( {{S_{sy}}} \right)$$

Ultimate tensile strength $$\left( {{S_u}} \right)$$

Tensile yield strength $$\left( {{S_y}} \right)$$

Torsional yield strength $$\left( {{S_{sy}}} \right)$$

Endurance strength $$\left( {{S_e}} \right)$$

GATE 2009 Mechanical Engineering PYQ — Strength of Materials

GATE 20092009PYQMCQanswer keyexplanation sooneasy

Strength of Materials · Theories of Failure

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Recurring concept

Theories of Failure has appeared in GATE Mechanical Engineering 17 times across 14 years (2016, 2017, 2022, 2023, 2025, ...).