圧縮荷重下における亀裂進展時のエネルギ解放率のX-FEM解析
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概要
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Using the X-FEM and the path independent E integral, we analyze the energy release rate at the onset of crack kinking for an isotropic linear elastic material in an infinite plate with a centered crack under a uni-axial and two axial compressive loads. In the X-FEM, we propose a simple method in which only the four-node quadrilateral isoperimetric elements in the fractured element are employed without the enrichment by the near-tip asymptotic solution. The friction forces are assumed to follow the Coulomb law, with a slip criterion treated in the context of a standard return mapping algorithm. Consistent linearization of the field equation is performed which leads a fully implicit scheme which preserves asymptotic quadratic convergence of the Newton-Raphson method.
- 土木学会 = Japan Society of Civil Engineersの論文
土木学会 = Japan Society of Civil Engineers | 論文
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