Journal
ENGINEERING FRACTURE MECHANICS
Volume 144, Issue -, Pages 142-157Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2015.06.084
Keywords
Fracture; Meshfree methods; Mindlin-Reissner plates; J-integral; Stabilized conforming nodal integration
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Funding
- JSPS KAKENHI [15H02328, 15H04212, 15K06632]
- JSPS [26-04055]
- Grants-in-Aid for Scientific Research [15K06632, 15H02328, 14F04055, 15H04212] Funding Source: KAKEN
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A novel technique to evaluate the path-independent integral using nodal integration is developed for cracked plate problems. The formulation is based on the Mindlin-Reissner plate theory, and the reproducing kernel is used as a meshfree interpolant. A visibility criterion, diffraction method, and enriched basis are included. To integrate the stiffness matrix, the stabilized conforming nodal integration and the sub-domain conforming integration are adopted. A moment intensity factor is also evaluated employing the J-integral based on the nodal integration. Convergence and numerical results derived from regular and irregular discretizations, node density, and other aspect ratios are analyzed. (C) 2015 Elsevier Ltd. All rights reserved.
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