This paper provides elastic analysis of compressive stresses in the matrix and skin regions of automotive substrates during 3D- and 2D-isostatic strength testing. The matrix region is treated as transversely isotropic material and the skin region as isotropic material, each with their independent elastic properties. Such a solution helps quantify load sharing by the matrix and skin regions which, in turn, affect compressive stresses in each region. The analysis shows that the tangential compressive stresses in the skin and matrix differ significantly at the interface due to high stiffness ratio of skin versus matrix. The resulting strain in the skin is more severe for thin and ultrathin wall substrates and may lead to localized bending of interfacial cells thereby inducing premature failure. Methods to reduce compressive strain in both the matrix and skin without affecting performance-related advantages are discussed. The analysis points out that the key factors that affect isostatic strength include skin vs matrix stiffness, skin vs web thickness, cell configuration, cell density and substrate diameter.


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    Titel :

    Isostatic Strength of Extruded Cordierite Ceramic Substrates


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Treacy, D. R. (Autor:in) / Yorio, J. A. (Autor:in) / Widjaja, S. (Autor:in) / Gulati, S. T. (Autor:in) / Xu, W. (Autor:in)

    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004



    Erscheinungsdatum :

    08.03.2004




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Isostatic strength of extruded cordierite ceramic substrates

    Gulati,S.T. / Widjaja,S. / Xu,W. et al. | Kraftfahrwesen | 2004


    Isostatic Strength of Extruded Cordierite Ceramic Substrates

    Gulati, S. T. / Widjaja, S. / Xu, W. et al. | British Library Conference Proceedings | 2004


    2004-01-1135 Isostatic Strength of Extruded Cordierite Ceramic Substrates

    Gulati, S. T. / Widjaja, S. / Xu, W. et al. | British Library Conference Proceedings | 2004


    High Temperature Compressive Strength of Extruded Cordierite Ceramic Substrates

    Reddy, K. P. / Gulati, Suresh T. | SAE Technical Papers | 1995


    High temperature compressive strength of extruded cordierite ceramic substrates

    Gulati,S.T. / Reddy,K.P. / Corning Glass,US | Kraftfahrwesen | 1995