Total strain energy theory for the failure of a material at elastic li

1.	Total strain energy theory for the failure of a material at elastic limit, is known_________________?
A.	Guest’s or Trecas’ theory
B.	St. Venant’s theory
C.	Rankine’s theory
D.	Haig’s theory
Answer» E.

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Total strain energy theory for the failure of a material at elastic limit, is known_________________?

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