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Laser and MIG Weld Failure CAE Modeling Method for Aluminum Structure Crash Analysis
Technical Paper
2002-01-2019
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A CAE modeling methodology has been developed for modeling laser and MIG (metal-inert-gas) weld separations. This new methodology can simulate weld failure in CAE aluminum vehicle crash analysis using a failure formulation derived from coupon test results. It is a generalized method and is intended to be applicable to any combination of the parameters such as thickness, material, and type of weld and impact speed. The method has been validated on the crash tests on straight and S-type rails with a hat section. The CAE prediction based on the modeling procedure correlates well with the test results for all the rail crush cases. The finite element analysis was conducted in RADIOSS environment. The welds are modeled using the beam-type spring element with the new weld damage parameters. The baseline curves for the spring element and the detailed projection equations developed are provided in this paper.
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Authors
Citation
Tang, D., Loosle, D., Barthelemy, B., and Liu, Y., "Laser and MIG Weld Failure CAE Modeling Method for Aluminum Structure Crash Analysis," SAE Technical Paper 2002-01-2019, 2002, https://doi.org/10.4271/2002-01-2019.Also In
SAE 2002 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V111-6; Published: 2003-09-15
Number: V111-6; Published: 2003-09-15
References
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- Radioss User's Manual - Version 4.1 Mecalog 1999 France
- Laser Welding of Aluminum - Feasibility Study Perez Carlos H. 2001 Aluminum Body Structures Dept, Ford Motor Company
- MIG Welding of Aluminum - Feasibility Study Perez Carlos H. 2001 Aluminum Body Structures Dept, Ford Motor Company
- Evaluation of Aluminum Laser and MIG Connections in Crash Environment Tang Dan Branson David Thomas Bob Perez Carlos Liu Yi Loosle David 2001 Aluminum Body Structures Dept., Ford Motor Company
- Self-Pierced Rivet (SPR) Modeling in Aluminum Structure Crash Analysis Tang Dan Yuan Helen Liu Yi Loosle David 2001 Aluminum Body Structures Dept., Ford Motor Company