In a metal forming operation when the material has just started yielding, the principal stresses 1 = +180 MPa, 2 = 100 MPa, 3 = 0. Following von Mises criterion, the yield stress is _____, MPa.

In a metal forming operation when the material has just started yieldi

1.	In a metal forming operation when the material has just started yielding, the principal stresses ₁ = +180 MPa, ₂ = 100 MPa, ₃ = 0. Following von Mises criterion, the yield stress is _____, MPa.
A.	245.76 MPa
B.	244.76 MPa
C.	243.76 MPa
D.	246.76 MPa
Answer» B. 244.76 MPa

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In a metal forming operation when the material has just started yielding, the principal stresses 1 = +180 MPa, 2 = 100 MPa, 3 = 0. Following von Mises criterion, the yield stress is _____, MPa.

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In a metal forming operation when the material has just started yielding, the principal stresses ₁ = +180 MPa, ₂ = 100 MPa, ₃ = 0. Following von Mises criterion, the yield stress is _____, MPa.