Low Cycle Fatigue of Spot Welds Under Constant and Variable Amplitude Loading 2003-01-0913
Experience from several car projects shows that S-N curves for spot welds generated under load control in the high cycle fatigue regime might be very conservative when used in the low cycle fatigue regime. Therefore, force and displacement controlled low cycle fatigue tests were carried out on peel and shear loaded specimens. Both constant (CA) and variable amplitude (VA) load signals were used. Finally, a method for predicting fatigue life of spot welds with increased accuracy in the low cycle fatigue regime is proposed. The method is simple, fast and accurate and can be used together with linear finite element analysis (FEA) and existing fatigue packages.
Citation: Fermér, M., Henrysson, H., Wallmichrath, M., and Rupp, A., "Low Cycle Fatigue of Spot Welds Under Constant and Variable Amplitude Loading," SAE Technical Paper 2003-01-0913, 2003, https://doi.org/10.4271/2003-01-0913. Download Citation
Author(s):
Mikael Fermér, Hans-Fredrik Henrysson, Marc Wallmichrath, Andreas Rupp
Affiliated:
Volvo Car Corporation, Fraunhofer Institut für Betriebsfestigkeit LBF
Pages: 8
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Finite element analysis
Fatigue
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