General Studies · Strength of Materials
A plane stress element in a structural member under loading has σx = 4P, σy = 2P and τxy = √3 P, where P > 0. The yield strength of the material is 300 MPa. If the member is designed using the maximum shear stress theory, then the value of P at which yielding starts is:
- 1120 MPa
- 2100 MPa
- 375 MPa
- 460 MPa✓
Correct answer
60 MPa
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