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A SimpleModel for Anisotropic Damage with Applications to Soft Tissues

  1. Daniel Balzani,
  2. Jörg Schröder2,
  3. Dietmar Gross1

Article first published online: 24 NOV 2004

DOI: 10.1002/pamm.200410099

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PAMM

PAMM

Volume 4, Issue 1, pages 236–237, December 2004

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How to Cite

Balzani, D., Schröder, J. and Gross, D. (2004), A SimpleModel for Anisotropic Damage with Applications to Soft Tissues. Proc. Appl. Math. Mech., 4: 236–237. doi: 10.1002/pamm.200410099

Author Information

  1. 1

    Institut für Mechanik, FB 6, Technische Universität Darmstadt, D-64289 Darmstadt, Germany

  2. 2

    Institut für Mechanik, FB 10, Bauwesen, Universität Duisburg-Essen, D-45141 Essen, Germany

Publication History

  1. Issue published online: 24 NOV 2004
  2. Article first published online: 24 NOV 2004

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Abstract

Arteries are reinforced by helically arranged collagen fibers and posses orthotropic elastic properties. In this paper a polyconvex anisotropic energy is used in order to guarantee the existence of minimizers for the purely elastic boundary value problem. Anisotropic discontinuous damage effects, which are induced by decreasing stiffness of particular fibers, are observed in a certain range of overexpansion. A simple thermodynamical consistent anisotropic damage model is constructed, basing on the assumption that damage mainly takes place in the fiber directions as a result of breakage of collagen cross-links.Finally a cycled overexpansion of a test material from an artery is analyzed in order to show the main characteristics of the proposed model. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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