A method to improve efficiency in welding simulations for simulaton driven design
2010 (English)In: Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - 2010: presented at ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, August 15 - 18, 2010, Montreal, Quebec, Canada, New York: American Society of Mechanical Engineers , 2010, 1-10 p.Conference paper (Refereed)
Welding is one of the most commonly used methods of joining metal pieces. In product development it is often desirable to predict residual stresses and distortions to verify that e.g., alignment tolerances, strength demands, fatigue requirements, stress corrosion cracking, etc. are fulfilled. The objective of this paper is to derive a strategy to improve the efficiency of welding simulations aiming at a (future) simulation-driven design methodology. In this paper, a weld bead deposition technique called block dumping has been applied to improve the efficiency. The proposed strategy is divided into seven steps, where the first four steps are verified by two welding simulation cases (a benchmark problem for a single weld bead-on-plate specimen and a T-welded structure). This study shows that by use of the block dumping technique, the computation time can be reduced by as much as 93% compared to moving heat source, still with acceptable accuracy of the model.
Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers , 2010. 1-10 p.
Research subject Computer Aided Design
IdentifiersURN: urn:nbn:se:ltu:diva-38082Local ID: c59cba80-e361-11df-8b36-000ea68e967bOAI: oai:DiVA.org:ltu-38082DiVA: diva2:1011581
ASME International Design Engineering Technical Conferences : 15/08/2010 - 18/08/2010
ProjectsFastelaboratoriet - VINNEXC
Godkänd; 2010; 20101029 (andpah)2016-10-032016-10-03Bibliographically approved