Combined Adaptive Finite Element Method and J-Domain Integral Technique for Crack Problems

Abstract:

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An adaptive finite element method for analyzing two-dimensional and axisymmetric nonlinear elastic fracture mechanics problems with cracks is presented. The J-integral is used as a parameter to characterize the severity of stresses and deformation near a crack tip. The domain integral technique is utilized as the J-integral solution scheme with the 9-node degenerated crack tip elements. The solution accuracy is further improved by incorporating an error estimation procedure to a remeshing algorithm with a solution mapping scheme to resume the analysis at a particular load level after the adaptive remeshing technique has been applied. Two benchmark problems are analyzed to evaluate the efficiency of the combined procedure.

Info:

Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

459-464

DOI:

10.4028/www.scientific.net/KEM.340-341.459

Citation:

K. Potjananapasiri et al., "Combined Adaptive Finite Element Method and J-Domain Integral Technique for Crack Problems", Key Engineering Materials, Vols. 340-341, pp. 459-464, 2007

Online since:

June 2007

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Price:

$35.00

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