*$_Maximum principal stress theory for the failure of a material at el

1.	*$_Maximum principal stress theory for the failure of a material at elastic point, is known?
A.	Guest's or Trecas' theory
B.	St. Venant's theory
C.	Rankine's theory
D.	Von Mises' theory
Answer» D. Von Mises' theory

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*$_Maximum principal stress theory for the failure of a material at elastic point, is known?

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