Higher order X-FEM for curved cracks
Résumé
Simulation of crack growth is an important tool to assess the safety of mechanical parts for instance in the aerospace industry. Since about 10 years, the extended finite element method has been developed to model this type of problem. With this approach the elements do not need to fit exactly the crack location thus relieving a lot of constraint on the meshing tool. With specific singular enrichments on the front of the crack, another advantage of X-FEM is that the computation does not require extremely small elements on the front.
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