Elasto-viscoplastic modeling of soft biological tissues: An application to facial tissue
Résumé
Soft biological tissues are characterized by a highly nonlinear, time dependent mechanical response. Constitutive model equations capturing this material behavior often make use of evolution equations given in rate form (see [4]). In this contribution a new perspective of the mixed finite element formulation was developed together with a strongly objective integration scheme of the evolution equations. The capability of the developed finite element formulation and the strongly objective integrator was demonstrated by an indentation example
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