@article{oai:kanazawa-u.repo.nii.ac.jp:00008619,
 author = {李, 柄奇 and 矢富, 盟祥},
 journal = {応用力学論文集 = Journal of applied mechanics : JSCE},
 month = {Jan},
 note = {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.},
 pages = {643--653},
 title = {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},
 volume = {7},
 year = {2004}
}