This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Framework for Modeling Spot Welds in Finite Element Analysis of Auto-Body Structures
Technical Paper
1999-01-3191
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper, a generalized spot weld model is presented for analyzing various performance attributes of spotwelded automotive structures. The spot weld model employs conventional definitions of beam- or nonlinear spring type elements. The relevant global mechanical properties are presented in the form of six pairs of generalized load-displacement relationships with respect to six degrees of freedom. The required generalized load-displacement relationships can be readily derived with assistance of local finite element welding process model along with limited single-weld coupon testing. As result, the effects of actual weld properties, welding-induced residual stress states, etc. can be incorporated for applications in finite element analysis of complex autobody structures. Its applications in conventional stress analysis for durability prediction, and limit load prediction, and crashworthiness simulation are also discussed with a few selected examples.
Recommended Content
Authors
Citation
Dong, P., Sun, X., Lu, F., and Zhang, J., "A Framework for Modeling Spot Welds in Finite Element Analysis of Auto-Body Structures," SAE Technical Paper 1999-01-3191, 1999, https://doi.org/10.4271/1999-01-3191.Also In
References
- Sun, X. et al. Modeling of Resistance Spot Welds: From Process to Performance,” Paper No. 99IBECC-17 International Body Engineering Conference (IBEC) Detroit, MI October, 1999
- Zhang, J. Dong, P. A Hybrid Polygonal Element Method for Fracture Mechanics Analysis of Resistance Spot Welds Containing Porosity Engineering Fracture Mechanics 59 6 1998 815 825
- Zhang, J. Dong, P. Analysis of Resistance Spot Welds Containing Porosity and Cracks Proceedings of the International Body Engineering Conference (IBEC) on Advanced Technologies & Processes 123 126 1997
- Li, M.V. Dong, P. Kimchi, M. Modeling and Analysis of Microstructure Development in High-Strength Steel Spot Welds Proceedings of the International Body Engineering Conference (IBEC) on Body Manufacturing, Assembly, and Advanced Manufacturing 5 59 64 1998
- Lu, F. Dong, P. Characterization of Nugget Development under Electrode Wear Conditions in Resistance Spot Welding Proceedings of the International Body Engineering Conference (IBEC) on Body Manufacturing, Assembly, and Advanced Manufacturing 5 199 202 1998
- Dong, P. Li, M.V. Kimchi, M. Finite Element Analysis of Electrode Wear Mechanisms: Face Extrusion and Pitting Effects Science and Technology of Welding and Joining 3 2 1998 59 64
- Sun, X. Dong, P. Kimchi, M. The Coupled Electrical-Thermal-Mechanical Process Associated with Aluminum Resistance Spot Welding Proceedings of the Seventh International Conference on Computer Technology in Welding Siewart T. 447 457 1997
- Li, M.V. Dong, P. Kimchi, M. Modeling of Contact Resistance during Resistance Spot Welding Proceedings of the Seventh International Conference on Computer Technology in Welding Siewart T. 1997
- Henrysson, H-F. et al. Residual Stresses in Resistance Spot Welds: Finite Element Simulations X-Ray Measurements and Influence on Fatigue Behavior, IIW Document Number: IIW-X/XV-RSD-21-98
- Zhang, S. Stress Intensities at Spot Welds International Journal of Fracture 88 167 185 1997