Study on Modal Shape Change as a Damage Index for Spot Welds

Rui Jie Wang; Xi Jie Yang; Zheng Ming Xiao

doi:10.4028/www.scientific.net/AMM.444-445.1087

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Study on Modal Shape Change as a Damage Index for...

Study on Modal Shape Change as a Damage Index for Spot Welds

Abstract:

The mode shape change of tension shear spot welds with propagation of crack was studied. Mode shape would change as crack exists, while the change is not so explicit. Difference between uncracked and cracked model modal shapes showed violent changes, but not give enough information of the crack location. Further Difference between two neighbouring points also can give information of crack, but also not saliently. Combination of the two would give explicit crack location information of the crack for tension shear spot welds.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

1087-1092

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.1087

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Online since:

October 2013

Authors:

Rui Jie Wang, Xi Jie Yang, Zheng Ming Xiao

Keywords:

Crack Location, Fatigue Crack, Finite Element Analysis (FEA), Modal Shape, Spot Weld

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