This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fixed Weld Reduction Method for Optimal Spot Weld Pattern Design
Technical Paper
2003-01-1304
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A new solution methodology for optimal spot-weld pattern design is presented. The objective of the optimization is to minimize the total number of welds in a structure while maintaining structural properties above a required level. Two approaches were developed, based on the representation of welds in a finite element model. In the approach ‘without ranking’ welds are represented in a traditional way, as rigid connections. In ‘with ranking’ approach welds are treated as elastic elements subjected to stresses and deformations under given loading conditions. The information on weld stress is utilized in the solution process to reduce the number of design variables and improve the quality of the solution. The applicability of the method to large automotive structures was demonstrated, as well as the capacity for optimization with respect to multiple load sets.
Authors
Topic
Citation
Savic, V. and Xu, S., "Fixed Weld Reduction Method for Optimal Spot Weld Pattern Design," SAE Technical Paper 2003-01-1304, 2003, https://doi.org/10.4271/2003-01-1304.Also In
References
- Kuang, J-H. Liu, A-H. A Study of the Stress Concentration Factor on Spot Welds Welding Journal 69 1990 468 474
- Pook, L. P. Fracture Mechanics Analysis of the Fatigue Behavior of Spot Welds International Journal of Fracture 11 1975 173 176
- Wang, P. C. Ewing, K. W. Fracture Mechanics Analysis of Fatigue Resistance of Spot Welded Coach-Peel Joints Fatigue and Fracture of Engineering Materials and Structures 14 1991 915 930
- Zhang, S. Stress Intensities at Spot Welds International Journal of Fracture 88 1997 167 185
- Zhang, S. Radaj, D. Forces and Stresses in Seam Welded Overlap Joints Derived from Outer Surface Deformation Engineering Fracture Mechanics 54 1996 743 750
- Lee, Y. Wehner, T. Lu, M. Morrissett, T. Pakalnins, E. Ultimate Strength of Resistance Spot Welds Subjected to Combined Tension and Shear Journal of Testing and Evaluation 26 1998 213 219
- Mizui, M. Sekine, T. Tsuzimura, A. Takasshima, T. Shimazaki, Y. An Evaluation of Fatigue Strength for Various Kinds of Spot-Welded Test Specimens SAE Paper 880375 1988
- Wang, Y. Lim, T. C. An Experimental and Computational Study of the Dynamic Characteristics of Spot-Welded Sheet Metal Structures SAE Technical Paper Series 2001-01-0431 2001
- Sun, X. Dong, P. Riesner, M. Low, E. Modeling of Resistance Spot Welds: From Process to Performance SAE Technical Paper Series 1999-01-3211 1999
- Dong, P. Sun, X. Lu, F. Zhang, J. A Framework for Modeling Spot Welds in Finite Element Analysis of Auto-Body Structures SAE Technical Paper Series 1999-01-3191 1999
- Jonscher, A. Lewerenz, M. Luhrs, G. The New Spot Weld Element in the CAE Process Proceedings of the 1st MSC Worldwide Automotive User Conference Munich, Germany 1999
- Voltz, A. K. Spot Weld Modeling for Crash Computations, Requirements and New Functionalities in LS-DYNA 5th International LS-DYNA Users Conference Southfield, Michigan 1998
- Chirehdast, M. Jiang, T. Optimal Design of Spot-Weld and Adhesive Bond Pattern SAE Technical Paper Series 960812 1996 151 155