The analytic solution of the mode I stress intensity factor for spot welds in lap-shear specimens is investigated based on the classical Kirchhoff plate theory for linear elastic materials. Approximate closed-form solutions for a finite square plate containing a rigid inclusion under counter bending conditions are first derived. Based on the J integral, the closed-form structural stress solution is used to develop the analytic solution of the mode I stress intensity factor for spot welds in lap-shear specimens of finite size. Finally, the analytic solution of the mode I stress intensity factor based on the stress solution for a finite square plate with an inclusion is compared with the results of the three-dimensional finite element computations for lap-shear specimens with various ratios of the specimen half width to the nugget radius. The results indicate that the mode I stress intensity factor solution based on a finite square plate with an inclusion agrees well with the computational results for lap-shear specimens.


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    Titel :

    Analytic Solution of Mode I Stress Intensity Factor for Spot Welds in Lap-Shear Specimens


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Wang, D.-A. (Autor:in) / Pan, J. (Autor:in) / Lin, P.-C. (Autor:in)

    Kongress:

    SAE 2006 World Congress & Exhibition ; 2006



    Erscheinungsdatum :

    03.04.2006




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Analytic solution of mode I stress intensity factor for spot welds in lap-shear specimens

    Lin,P.C. / Pan,J. / Wang,D.A. et al. | Kraftfahrwesen | 2006



    Stress intensity factors for kinked cracks near spot welds in lap-shear specimens

    Wang,D.A. / Pan,J. / Da-Yeh Univ.,CN et al. | Kraftfahrwesen | 2005


    Closed-form stress intensity factor solutions for spot welds in various types of specimens

    Lin,P.C. / Pan,J. / National Chung Cheng Univ.,TW et al. | Kraftfahrwesen | 2008