Modelling of laser beam spot-weld using 2-D hybrid crack finite elements Yang, Chunhui and Zhang, Y. 2008, Modelling of laser beam spot-weld using 2-D hybrid crack finite elements, in APCMP 2008 : Proceedings of the 8th Asia-Pacific conference on materials processing, Frontiers of Design and Manufacturing, Riverwood, N.S.W., pp. 1137-1142. Attached Files Name Description MIMEType Size Downloads Title Modelling of laser beam spot-weld using 2-D hybrid crack finite elements Author(s) Yang, Chunhui Zhang, Y. Conference name Asia-Pacific Conference on Materials Processing (8th : 2008 : Guilin, China, and Guangzhou, China) Conference location Guilin-Guangzhou, China Conference dates 15-20 June 2008 Title of proceedings APCMP 2008 : Proceedings of the 8th Asia-Pacific conference on materials processing Editor(s) Wang, C. Y. Li, X. P. Wang, J. Publication date 2008 Conference series Asia-Pacific Conference on Materials Processing Start page 1137 End page 1142 Publisher Frontiers of Design and Manufacturing Place of publication Riverwood, N.S.W. Summary Laser beam spot-welding is widely applied to join sheet metals for automotive components especially for thinsheet components in automotive industries. The spot welds in such metallic structures contribute a lot to the integrated strength and fatigue life for the whole structures and they are responsible for their damage or collapse in some loading cases. In this paper, the 2-D hybrid special finite elements each containing an edge crack are employed to study the fracture behaviors of laser beam spot-welds. Hence the calculation accuracy in the vicinity of crack tips is ensured, and a better description of stress singularity with only one hybrid element surrounding one crack is provided. The numerical modeling for laser beam spot-welds subjected to three typical modes ofloadings including tension-lap, shear-lap and angle-clip can be greatly simplified with the applications of such elements. Three specimens under lap-shear, lap-tension and angle clip are devised and analyzed respectively, and main fracture parameters such as stress intensity factors and the initial direction of crack growth are obtained through tinite element analyses. The computed results ti'om numerical examples demonstrate the validity and versatility of the proposed modeling. ISBN 9780958069298 Language eng Field of Research 090202 Automotive Engineering Materials Socio Economic Objective 861205 Sheet Metal Products HERDC Research category E1 Full written paper - refereed Copyright notice ©2008, APCMP Persistent URL http://hdl.handle.net/10536/DRO/DU:30018279 Document type: Conference Paper Collections: Faculty of Science, Engineering and Built Environment School of Engineering and Information Technology Related Links Link Description Connect to conference website Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 14 Aug 2009, 14:06:49 EST Thu, 10 Dec 2009, 13:25:43 EST Fri, 14 May 2010, 15:14:32 EST Fri, 14 May 2010, 15:15:29 EST Fri, 16 Mar 2012, 17:10:15 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 604 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 14 Aug 2009, 14:06:49 EST

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