Computation of J integral based on traction boundary integral equation
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KeyWord:boundary integral equation,fracture mechanics,J integral
Chen Songying *1  2  \ Wang Leqin 1  \ Jiao Lei 1  Qu Yanpeng 2
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      Based on testifying the integrand divergence free property of the traction boundary integral equation and Stokes' theorem, the computation of traction boundary integral equation can be transformed into the evaluation of the displacement potential function on the boundary points. As the same way, applying the results of traction boundary integral equation, J integral can be also transformed into the computation of the J integral potential function at the points. No numerical integrals are needed in the whole calculation procedure. The numerical examples presented show the scheme has a excellent accuracy.