한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)
- 한국전산구조공학회 2006년도 정기 학술대회 논문집
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- Pages.357-364
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- 2006
국부 단위분할 원리에 기초한 무요소법의 점성균열 모델
A Meshfree method Based on the Local Partition of Unity for Cohesiv cracks
- 발행 : 2006.04.01
초록
The meshfree method is extended by the local partition of unity method to model the cohesive cracks in two dimensional continuum The shape function of a particle whose domain of influence is completely cut by a crack is enriched by the step enrichment function. If the domain of influence contains a crack tip inside, it is enriched by the branch enrichment function without the stress singularity. It is found that this method is more accurate and converges faster than the meshless methods for LEFM cracks based on the visibility concept Several staic and dynamic examples are solved to verify the method.