MPPSC SES Mechanical

Practice session

According to the Maximum Shear Stress theory of failure (Tresca's criterion), yield occurs when the maximum shear stress in a bi-axial stress state exceeds the maximum shear stress in a uniaxial tension test at yield. What is the yield condition in terms of principal stresses sigma_1 and sigma_2 (where sigma_1 >= sigma_2 and they are of opposite signs)?

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