NVH simulations of structures with a large number of spot welds require simplified models for the spot welds. The simplified models should be able to deliver reliable natural frequency and vibrational mode. Sometimes the damping of the spot-welded joints is to be considered as well. It may also be desired that the same spot weld model can be used for fatigue predictions so that a uniform spot weld model can be employed for both applications. This paper will present such a model. The model is based on shell element models like automotive structures with coarse and non-matching meshes and it is verified by the experimental results on coupon and component levels. The model consists of a beam element connected through rigid bars to the shell elements of the basic structure. An automatic generation of such spider models in large structures is supported by some mesh generators like MEDINA and ANSA. Application of the model in fatigue predictions is briefly discussed as well.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Simplified Spot Weld Model for NVH Simulations


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2005 World Congress & Exhibition ; 2005



    Publication date :

    2005-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Simplified spot weld model for NVH simulations

    Zhang,S. / DaimlerChrysler,DE | Automotive engineering | 2005


    A simplified Spot Weld Model for Finite Element Analysis

    Zhang, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    A Simplified Spot Weld Model for Finite Element Analysis

    Zhang, Shicheng | SAE Technical Papers | 2004


    A simplified spot weld model for finite element analysis

    Zhang,S. / DaimlerChrysler,Stuttgart,DE | Automotive engineering | 2004


    The Development of a Simplified Spot Weld Model for Battelle Structural Stress Calculation

    Hong, J.K. / Society of Automotive Engineers | British Library Conference Proceedings | 2011