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Total Lagrangian Explicit Dynamics-Based Simulation of Tissue Tearing

  • Kumar Vemaganti
  • Grand R. Joldes
  • Karol Miller
  • Adam Wittek
Conference paper

Abstract

This study presents an approach to modeling the tearing of tissue in two dimensions taking into account both material and geometrical nonlinearities. The approach is based on the total Lagrangian explicit dynamics (TLED) algorithm and realigns edges in the mesh along the path of the tear by node relocation. As such, no new elements are created during the propagation of the tear. The material is assumed to be isotropic, and the tearing criterion is based on the maximum node-averaged principal stress. Preliminary results show that the approach is capable of handling both isotropic and anisotropic tears.

Keywords

Tissue tearing Tissue cutting Total Lagrangian Explicit dynamics Soft tissue 

Notes

Acknowledgments

This research was carried out while the first author was a visiting professor at the University of Western Australia.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Kumar Vemaganti
    • 1
  • Grand R. Joldes
  • Karol Miller
  • Adam Wittek
  1. 1.University of CincinnatiCincinnatiUSA

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