This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Damage and Dynamic Natural Frequency Response of Spot-Welded Joints
Technical Paper
2003-01-0695
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The changes of dynamic frequency response, commonly used to determine the dynamic characteristic of built-up structures, were studied over the entire fatigue failure process for tensile-shear spot-welded joints. The results of an experimental study showed that the natural frequency varies non-linearly with the fatigue damage fraction. This behavior was modeled using finite element analysis of a progressively growing crack, initiating at the joining surface, then progressing to the outside surface of the specimen, and finally extending from the spot weld nugget. The relationship between dynamic frequency response and crack propagation may be applied to study effect of aging (high mileage) in NVH quality.
Authors
Citation
Shang, D., Barkey, M., Wang, Y., and Lim, T., "Fatigue Damage and Dynamic Natural Frequency Response of Spot-Welded Joints," SAE Technical Paper 2003-01-0695, 2003, https://doi.org/10.4271/2003-01-0695.Also In
References
- Lemaitre J. Dufailly J. Damage measurements. Engineering Fracture Mechanics 28 643 661 1987
- Chaboche J. L. Continuous damage mechanics - A tool to describe phenomena before crack initiation. Nuclear Engineering and Design 64 233 247 1981
- Cheng G. X. Lou Z. W. Kuang Z. B. A new damage variable for low-cycle fatigue of metallic materials Engineering Fracture Mechanics 48 281 287 1994
- Davidson J. A. A review of the fatigue properties of spot-welded sheet steels SAE Technical Paper No . 830033 1983
- Davidson J. A. Imkof E. J. Jr The effect of tensile strength on the fatigue life of spot-welded sheet steel SAE Technical Paper No . 840110 1984
- Lindgren C. Sperle J. O. Jonsson M. Fatigue strength of spot welded beams in high strength steels Welding in the Word/Le Soudage dans le Monde 37 90 104 1996
- Barkey M. E. Kang H. Lee Y. Failure modes of single resistance spot welded joints subjected to combined fatigue loading International Journal of Materials and Product Technology 16 510 527 2001
- Kang H. Barkey M. E. Lee Y. Evaluation of multiaxial spot weld fatigue parameters for proportional loading International Journal of Fatigue 22 691 702 2000
- Kang H. Barkey M. E. Fatigue life estimation of spot welded joints using an interpolation/extrapolation technique International Journal of Fatigue 21 769 777 1999
- Cooper J. F. Smith R. A. Fatigue crack propagation at spot welds, Metal Construction June 1986 383R 386R
- Satoh T. et al. On three-dimensional elastic-plastic stress analysis of spot-welded joint under tensile shear load Transactions of the Japan Welding Society 22 1 46 51 1991