Fatigue Damage and Dynamic Natural Frequency Response of Spot-Welded Joints 2003-01-0695
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.
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. Download Citation
Author(s):
De-Guang Shang, M. E. Barkey, Yi Wang, Teik C. Lim
Affiliated:
The University of Alabama, University of Cincinnati
Pages: 10
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Welding & Joining-SP-1766, SAE 2003 Transactions Journal of Materials & Manufacturing-V112-5
Related Topics:
Fatigue
Welding
Joining
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