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
Contributor : Alain Broc
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Submitted on : Monday, September 1, 2014 - 3:22:14 PM
Last modification on : Thursday, February 13, 2020 - 10:21:10 AM
Long-term archiving on: Tuesday, April 11, 2017 - 9:20:27 PM
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⟩
