Abstract
In this article, we demonstrate the flexibility of a multi-domain approach combined with the extended finite element method by addressing the modeling and simulation of keyhole-based welding. The welding process is modeled by the heat equation where the keyhole geometry and the interface separating molten and solid area are represented by two independent level set functions, separating the domain into three time-dependent subdomains. The keyhole shape is computed by an analytical approach based on the energy balance at the keyhole wall and its shape is assumed to be fixed. The solid-liquid interface is considered as free boundary whose evolution is described by the two-phase Stefan problem. The coupled problem including the two discontinuities is solved using a multi-domain XFEM implementation. The simulated results are shown together with experimental data on different welded materials.
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 callDisclaimer: 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.
