A new crack tip element for the phantom-node method with arbitrary cohesive cracks

作者：Rabczuk Timon; Zi Goangseup^*; Gerstenberger Axel; Wall Wolfgang A

来源：International Journal for Numerical Methods in Engineering, 2008, 75(5): 577-599.

DOI：10.1002/nme.2273

• cracks
• Hansbo and Hansbo's approach
• phantom-node method
• dynamic fracture

We have developed a new crack tip element for the phantom-node method. In this method, a crack tip can be placed inside an element. Therefore, cracks can propagate almost independent of the finite element mesh. We developed two different formulations for the three-node triangular element and four- node quadrilateral element, respectively. Although this method is well suited for the one-point quadrature scheme, it can be used with other general quadrature schemes. We provide some numerical examples for some static and dynamic problems.

• 出版日期2008-7-30