GATE 2022 PI – Question 28

General Engineering · Applied Mechanics · 1 mark · Numerical answer

Yield begins at principal stresses 100,100,200 MPa. Find uniaxial yield stress according to von Mises, nearest integer MPa.

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Correct answer: 99 to 101

Explanation

Equivalent stress is $\sqrt{[(100-100)^2+(100-200)^2+(200-100)^2]/2}=100$ MPa. At onset of yield this equals uniaxial yield strength: **100 MPa**.

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