Comparison of 3-D Integration Schemes for Enriched Elements in XFEM

The XFEM is a technique developed for the numerical simulation of fracture mechanics problems. The method shows several advantages. But some questions arise that should be handled with some care. Numerical integration of the enriched elements is one of these issues. In this work we have compared two...

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Autores:
Tipo de recurso:
Fecha de publicación:
2016
Institución:
Universidad Industrial de Santander
Repositorio:
Repositorio UIS
Idioma:
spa
OAI Identifier:
oai:noesis.uis.edu.co:20.500.14071/8330
Acceso en línea:
https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/7-16
https://noesis.uis.edu.co/handle/20.500.14071/8330
Palabra clave:
enriched elements, fracture mechanics, integration, XFEM.
enriched elements
fracture mechanics
integration
XFEM
elementos enriquecidos
integración
mecánica de la fractura
XFEM
Rights
openAccess
License
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Description
Summary:The XFEM is a technique developed for the numerical simulation of fracture mechanics problems. The method shows several advantages. But some questions arise that should be handled with some care. Numerical integration of the enriched elements is one of these issues. In this work we have compared two avalaible techniques for its integration. One is a classic integration scheme and another is a scheme specifically developed for this kind of elements. The differences on the results are minimal, but not in their implementation difficulty. Hence, the classical integration is recommended.