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Element free Galerkin method for crack analysis of orthotropic plates | ||
| Computational Methods in Civil Engineering | ||
| مقاله 1، دوره 1، شماره 1، فروردین 2010، صفحه 1-13 اصل مقاله (1.15 M) | ||
| نویسندگان | ||
| S.Sh. Ghorashi؛ S.R. Sabbagh-Yazdia* ؛ S. Mohammadi | ||
| چکیده | ||
| A new approach for analyzing cracked problems in 2D orthotropic materials using the well-known element free Galerkin method and orthotropic enrichment functions is proposed. The element free Galerkin method is a meshfree method which enables discontinuous problems to be modeled efficiently. In this study, element free Galerkin is extrinsically enriched by the recently developed crack-tip orthotropic enrichment functions. Also, a suitable way is applied to select support domains near a crack so that the discontinuity can be modeled without the Heaviside enrichment function. Crack-tip enrichment functions span the possible displacement space that may occur in the analytical solution. For evaluating the mixed-mode stress intensity factors, the interaction integral is applied. Some numerical examples are simulated to investigate the efficacy of the new approach by comparing with other numerical or (semi-) analytical methods. | ||
| کلیدواژهها | ||
| Orthotropic material; Element free Galerkin method; Enrichment functions; Interaction integral; Stress intensity factors | ||
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