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.
|Number of pages||8|
|Publication status||Published - 1 Dec 2003|
|Event||Proceedings of the Tenth International Congress on Sound and Vibration - Stockholm, Sweden|
Duration: 7 Jul 2003 → 10 Jul 2003
|Conference||Proceedings of the Tenth International Congress on Sound and Vibration|
|Period||7/07/03 → 10/07/03|