Von-mises or Distortion-energy Criteria proposed that yielding will oc – McqOptions

MCQOPTIONS

1.	Von-mises or Distortion-energy Criteria proposed that yielding will occur when the second invariant of the stress deviator J₂ exceeds some critical value. The second invariant of the stress deviator J₂ is equal to __________
A.	1/6 [( <sub>1</sub> <sub>2</sub>)<sup>2</sup>+( <sub>2</sub> <sub>3</sub>)<sup>2</sup>+( <sub>3</sub> <sub>1</sub>)<sup>2</sup>]
B.	1/2 [( <sub>1</sub> <sub>2</sub>)<sup>2</sup>+( <sub>2</sub> <sub>3</sub>)<sup>2</sup>+( <sub>3</sub> <sub>1</sub>)<sup>2</sup>]
C.	[ <sub>1</sub> + <sub>2</sub> + <sub>3</sub>]
D.	1/2 [( <sub>1</sub> <sub>2</sub>)+( <sub>2</sub> <sub>3</sub>)+( <sub>3</sub> <sub>1</sub>)]
Answer» B. 1/2 [( <sub>1</sub> <sub>2</sub>)<sup>2</sup>+( <sub>2</sub> <sub>3</sub>)<sup>2</sup>+( <sub>3</sub> <sub>1</sub>)<sup>2</sup>]

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