Abstract : The thermo-mechanical history in each HAZ is analysed by FE simulation of the welding process. The micro-structure of each HAZ material is then replicated on tensile sample using a Gleeble thermo-mechanical simulator. The micro-structure of the simulated HAZ materials was compared to the micro-structure of the HAZ materials in a spot weld to validate the procedure. Uni-axial tensile specimens are then tested at different displacement rates. The behaviour of the base metal and the HAZ materials are strain-rate dependents but the fracture strain is not strain rate sensitive for the HAZ materials.
https://hal-onera.archives-ouvertes.fr/hal-01059670
Contributeur : Alain Broc
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Soumis le : lundi 1 septembre 2014 - 15:22:14
Dernière modification le : mercredi 13 février 2019 - 17:38:08
Document(s) archivé(s) le : mardi 11 avril 2017 - 21:20:27
E. Markiewicz, B. Langrand, T. Dupuy. Strain rate sensitivity analysis of spot-weld heat affected materials.. ICILLS 2014 - 4th International Conference on Impact Of Lightweight Structures, Jan 2014, CAPE TOWN, South Africa. 〈hal-01059670〉
