A partition of unity-based multiscale approach for modelling fracture in piezoelectric ceramics

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    Abstract

    The development of models for a priori assessment of the reliability of micro electromechanical systems(MEMS) is of crucial importance for the further development of such devices. In this contribution apartition of unity-based cohesive zone finite element model is employed to mimic crack nucleationand propagation in a piezoelectric continuum. A multiscale framework to appropriately representthe influence of the microstructure on the response of a miniaturised component is proposed. Itis illustrated that using the proposed multiscale method a representative volume element exists.Numerical simulations are performed to demonstrate the constitutive homogenisation framework
    Original languageEnglish
    Pages (from-to)966-994
    JournalInternational Journal for Numerical Methods in Engineering
    Volume82
    Issue number8
    DOIs
    Publication statusPublished - 2010

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