Abstract
In the present work, virtual node extended finite element method (VNXFEM) is proposed for modeling and simulation of kinked cracks in a single element. The kinked crack growth in an element is performed using the concept of virtual nodes to model and improve the accuracy of the solution. The virtual nodes are enriched with additional degrees of freedom. In the proposed approach, an actual tip element is divided into one virtual tip element and one virtual split element with the help of virtual nodes. Special five-node transition elements are used to ensure the continuity in the displacement fields. A polygon law is proposed to determine the positions of the Gauss points with respect to a crack face in the virtual split elements for the purpose of integration. Several crack growth problems in homogeneous and bi-materials are solved to verify the proposed method. The results obtained by VNXFEM are compared with those available in literature and standard XFEM solutions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Computer Methods in Applied Mechanics and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
