A new hybrid approach to continuum structural shape sensitivity analysis employing boundary element analysis (BEA) is presented. The approach uses iterative reanalysis to obviate the need to factor perturbed matrices in the determination of surface displacement and traction sensitivities via a univariate perturbation/finite difference (UPFD) step. The UPFD approach makes it possible to immediately reuse existing subroutines for computation of BEA matrix coefficients in the design sensitivity analysis process. The reanalysis technique computes economical response of univariately perturbed models without factoring perturbed matrices. The approach provides substantial computational economy without the burden of a large-scale reprogramming effort.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Boundary formulations for sensitivity analysis without matrix derivatives


    Contributors:

    Published in:

    Publication date :

    1993-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English