Dynamic modeling of spot welds using thin layer interface theory

H. Ahmadian*, H. Jalali, J. E. Mottershead, M. I. Friswell

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

16 Citations (Scopus)

Abstract

Spot welds are widely used for manufacturing of thin sheet components, and they are subject to complex dynamic loading conditions. Many procedures have been used to model the behaviour of spot welds. In the point-to-point connection they are modelled as beam elements, or a combination of them, connecting the shell elements that are used to model sheet metal. The main advantage of this approach is that because of the simplicity of the model of spot welds it produces a relatively simple finite element model of the structure. However the model neglects the stiffness of the face-to-face contact zone of sheet components in the vicinity spot welds. This paper addresses the modelling problem of a spot-welded structure under dynamic loading consideration. It employs a thin layer interface model with variable stiffness properties to represent the spot welds joint and face-to-face contact effects. The predictions of the resultant model are validated using experimental modal data of a test specimen.

Original languageEnglish
Pages3439-3446
Number of pages8
Publication statusPublished - 1 Dec 2003
Externally publishedYes
EventProceedings of the Tenth International Congress on Sound and Vibration - Stockholm, Sweden
Duration: 7 Jul 200310 Jul 2003

Conference

ConferenceProceedings of the Tenth International Congress on Sound and Vibration
CountrySweden
CityStockholm
Period7/07/0310/07/03

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