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Failure Modeling of Spot Welds Under Complex Combined Loading Conditions for Crash Applications
Technical Paper
2002-01-2032
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Experiments to obtain the failure loads of spot welds are first reviewed under combined opening and shear loading conditions. A failure criterion is then presented for spot welds under combined opening and shear loading conditions based on the results from the experiments and a lower bound limit load analysis. In order to account for spot welds under more complex loading conditions, another lower bound limit load solution is presented to characterize the failure loads of spot welds under combinations of three forces and three moments. Based on the limit load solution, an engineering failure criterion is proposed with correction factors determined by different spot weld tests. The engineering failure criterion can be used to characterize the failure loads of spot welds with consideration of the effects of sheet thickness, nugget radius and combinations of loads. Spot weld failure loads under uniaxial and biaxial opening loads and those under combined shear and twisting loads from experiments are shown to be characterized well by the engineering failure criterion.
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Citation
Lin, S., Pan, J., Tyan, T., and Prasad, P., "Failure Modeling of Spot Welds Under Complex Combined Loading Conditions for Crash Applications," SAE Technical Paper 2002-01-2032, 2002, https://doi.org/10.4271/2002-01-2032.Also In
References
- Hartmann, E. C. 1958 Mechanical Tests of Spot Welds Welding Journal 37 520 523
- Davidson, J. A. 1983 A Review of the Fatigue Properties of Spot-Welded Sheet Steels SAE Technical Paper No. 830033 Society of Automotive Engineers Warrendale, Pennsylvania
- Radaj, D. 1989 Stress Singularity, Notch Stress and Structural Stress at Spot-Welded Joints Engineering Fracture Mechanics 34 495 506
- Wang, P.-C. Ewing, K. W. 1991 Fracture Mechanics Analysis of Fatigue Resistance of Spot Welded Coach-Peel Joints Fatigue and Fracture of Engineering Materials & Structures 14 913 930
- Swellam, M. H. Banas, G. Lawrence, F. V. 1994 A Fatigue Design Parameter for Spot Welds Fatigue and Fracture of Engineering Materials & Structures 17 1197 1204
- Sheppard, S. D. Pan, N. 2001 A Look at Fatigue: Is Resistance Spot Welds-Notch or Crack? SAE Technical Paper No. 2001-01-0433 Society of Automotive Engineers Warrendale, Pennsylvania
- Zhang, S. 2001 Recent Developments in Analysis and Testing of Spot Welds SAE Technical Paper No. 2001-01-0432 Society of Automotive Engineers Warrendale, Pennsylvania
- VandenBossche, D. J. 1977 Ultimate Strength and Failure Mode of Spot Welds in High Strength Steels SAE Technical Paper No. 770214 Society of Automotive Engineers Warrendale, Pennsylvania
- Sawhill, J. M. Furr, S. T. 1981 Spot Weldibility Tests for High-Strength Steels SAE Technical Paper No. 810352 Society of Automotive Engineers Warrendale, Pennsylvania
- Ewing, K. W. Cheresh, M. Thompson, R. Kukuchek, P. 1982 Static and Impact Strengths of Spot Welded HSLA and Low Carbon Steel Joints SAE Technical Paper No. 820281 Society of Automotive Engineers Warrendale, Pennsylvania
- Zuniga, S. Sheppard, S. D. 1997 Resistance Spot Weld Failure Loads and Modes in Overload Conditions Fatigue and Fracture Mechanics Piascik, R. S. Newman, J. C. Dowling, N. E. American Society for Testing and Materials 469 489
- Lee, Y.-L. Wehner, T. J. Lu, M.-W. Morrissett, T. W. Pakalnins, E. 1998 Ultimate Strength of Resistance Spot Welds Subjected to Combined Tension and Shear Journal of Testing and Evaluation 26 213 219
- Wung, P. 2001 A Force-based Failure Criterion for Spot Weld Analysis Journal of Experimental Mechanics 41 107 113
- Wung, P. Walsh, T. Ourchane, A. Stewart, W. Jie, M. 2001 Failure of Spot Welds under In-plane Static Loading Journal of Experimental Mechanics 41 100 106
- Lin, S.-H. Pan, J. Wu, S.-R. Tyan, T. 2001 Spot Weld Failure Loads under Combined Mode Loading Conditions SAE Technical Paper No. 2001-01-0428 Society of Automotive Engineers Warrendale, Pennsylvania
- Lin, S.-H. Pan, J. Tyan, T. Wu, S.-R. Prasad, P. 2002 Modeling and Testing of Spot Welds under Dynamic Impact Loading Conditions SAE Technical Paper No. 2002-01-0149 Society of Automotive Engineers Warrendale, Pennsylvania
- Lin, S.-H. Pan, J. Wu, S.-R. Tyan, T. Wung, P. 2002 Failure Loads of Spot Welds under Combined Opening and Shear Static Loading Conditions International Journal of Solids and Structures 39 19 39
- Lin, S.-H. Pan, J. Wu, S.-R. Tyan, T. Prasad, P. 2002 Failure Loads of Spot-Weld Specimens under Impact Opening and Shear Loading Conditions
- Wung, P. Stewart, W. 2001 Method of Analyzing Spot Welded Structures
- Lin, S.-H. Pan, J. Tyan, T. Prasad, P. 2002 A Circumferential Failure Criterion for Spot Welds under Combined Multiaxial Loading Conditions
- Wung, P. 2001 A Method for Spot Welded Structure Analysis SAE Technical Paper No. 2001-01-0427 Society of Automotive Engineers Warrendale, Pennsylvania