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Explicit Dynamic Finite Element Method for Predicting Implosion/Explosion Induced Failure of Shell Structures

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  • Jeong-Hoon Song
  • Patrick Lea
  • Jay Oswald

Abstract

A simplified implementation of the conventional extended finite element method (XFEM) for dynamic fracture in thin shells is presented. Though this implementation uses the same linear combination of the conventional XFEM, it allows for considerable simplifications of the discontinuous displacement and velocity fields in shell finite elements. The proposed method is implemented for the discrete Kirchhoff triangular (DKT) shell element, which is one of the most popular shell elements in engineering analysis. Numerical examples for dynamic failure of shells under impulsive loads including implosion and explosion are presented to demonstrate the effectiveness and robustness of the method.

Suggested Citation

  • Jeong-Hoon Song & Patrick Lea & Jay Oswald, 2013. "Explicit Dynamic Finite Element Method for Predicting Implosion/Explosion Induced Failure of Shell Structures," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-11, October.
    • Handle: RePEc:hin:jnlmpe:957286
    DOI: 10.1155/2013/957286
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