| Crack in an Arbitrary Body |
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A general formula for determining the J integral of a crack in an arbitrary body is described in this section.
 For a nonlinear elastic body containing a crack along  or alternatively, J can be rewritten in a matrix form,  where 
The J intergral can be expanded in terms of the global x-y coordinates as after change of variables:  |
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Fracture Mechanics |
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Linear Elastic Fracture Mechanics |
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Elastic Plastic Fracture Mechanics |
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The J Integral |
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Introduction to J Integral |
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Determination of J |
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axis, the J integral, from the definition, is
for plane strain and 
for plane stress.
Glossary
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