GATE ME 2023 | Complex Stresses Question 2 | Strength of Materials

GATE ME 2023

MCQ (More than One Correct Answer)

-0

The principal stresses at a point P in a solid are 70 MPa, −70 MPa and 0. The yield stress of the material is 100 MPa. Which prediction(s) about material failure at P is/are CORRECT?

Maximum normal stress theory predicts that the material fails

Maximum shear stress theory predicts that the material fails

Maximum normal stress theory predicts that the material does not fail

Maximum shear stress theory predicts that the material does not fail

GATE ME 2023

MCQ (More than One Correct Answer)

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Which of the plot(s) shown is/are valid Mohr’s circle representations of a plane stress state in a material? (The center of each circle is indicated by O.)

GATE ME 2023 Strength of Materials - Complex Stresses Question 1 English

GATE ME 2022 Set 2

MCQ (Single Correct Answer)

-0.33

A structural member under loading has a uniform state of plane stress which in usual notations is given by σ_x= 3P, σ_y = -2P and τ_xy = √2 P, where P > 0. The yield strength of the material is 350 MPa. If the member is designed using the maximum distortion energy theory, then the value of P at which yielding starts (according to the maximum distortion energy theory) is

70 MPa

90 MPa

120 MPa

75 MPa

GATE ME 2022 Set 1

MCQ (More than One Correct Answer)

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Assuming the material considered in each statement is homogeneous, isotropic, linear elastic, and the deformations are in the elastic range, which one or more of the following statement(s) is/are TRUE?

A body subjected to hydrostatic pressure has no shear stress

If a long solid steel rod is subjected to tensile load, then its volume increases

Maximum shear stress theory is suitable for failure analysis of brittle materials

If a portion of a beam has zero shear force, then the corresponding portion of the elastic curve of the beam is always straight.

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