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Publication - Dr Jitendra Agarwal

    An improved measure of structural vulnerability

    Citation

    Zhuang, W & Agarwal, J, 2017, ‘An improved measure of structural vulnerability’.

    Abstract

    The conventional design provides a structural system with a degree of strength and ductility but it is not easy to quantify the level of robustness. A measure
    of vulnerability provides a direction to increase the robustness of a structure. The structural vulnerability theory examines the form of a structure to quantify the consequences in relation to initial damage and thus identifies vulnerable failure scenarios. A significant aspect of the theory is the concept of well-formedness which helps to evaluate the structural consequences after damage.

    The purpose of this paper is present an improved measure of structural wellformedness and vulnerability. Its novelty lies in taking a better account of the structural supports thus producing more representative vulnerability indices for the identified failure scenarios. First, the structural vulnerability theory, including the original well-formedness measure is briefly introduced to set the context. Second, the modifications to the well-formedness measure are presented. These make use of the largest eigenvalues of the support joints to differentiate the quality of individual support joints to vulnerability. Third, the efficacy of the new measure is demonstrated through numerical examples.

    Full details in the University publications repository