Experimental and simulated strength of spot welds

Chris Valentin Nielsen, Rune A.K. Bennedbæk, Morten B. Larsen, Niels Bay, Azeddine Chergui, Wenqi Zhang, Paulo A.F. Martins

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Weld strength testing of single spots in DP600 steel is presented for the three typical testing procedures, i.e. tensile-shear, cross-tension and peel testing. Spot welds are performed at two sets of welding parameters and strength testing under these conditions is presented by load-elongation curves revealing the maximum load and the elongation at break. Welding and strength testing is simulated by SORPAS® 3D, which allows the two processes to be prepared in a combined simulation, such that the simulated welding properties are naturally applied to the simulation of strength testing. Besides the size and shape of the weld nugget, these properties include the new strength of the material in the weld and the heat affected zone based on the predicted hardness resulting from microstructural phase changes simulated during cooling of the weld before strength testing. Comparisons between overall geometry, stiffness and load-elongation curves are presented.
Original languageEnglish
Title of host publicationProceedings of the 8th International Seminar on Advances in Resistance Welding
EditorsWenqi Zhang, Eugenio Tedeschi
PublisherSWANTEC Software and Engineering ApS
Publication date2014
ISBN (Electronic)978-87-997674-0-3
Publication statusPublished - 2014
Event8th International Seminar on Advances in Resistance Welding - Baveno, Italy
Duration: 10 Sep 201412 Sep 2014
Conference number: 8


Conference8th International Seminar on Advances in Resistance Welding

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