1.

The J-Integral is interpreted as the potential energy difference between the two identically loaded sample having slightly different crack lengths. Mathematically it can be written as __________

A. J=dUo/da=K2/E’
B. J=dUo/da=K/E’
C. J=dUo/da=K2/E2
D. J=dUo/da=K/E
Answer» B. J=dUo/da=K/E’


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