Abstract:
:This paper presents a projection method for deriving membrane models from the corresponding three-dimensional material models. As a particular example the anisotropic Holzapfel-Gasser-Ogden model is considered. The projection procedure is based on the kinematical and constitutive assumptions of a general membrane theory, considering the membrane to be a general two-dimensional manifold. By assuming zero transverse stress, the Lagrange multiplier associated with the incompressibility constraint can be eliminated from the formulation. The resulting nonlinear model is discretized and linearized within the finite element method. Several numerical examples are shown, considering quadratic Lagrange and NURBS finite elements. These show that the proposed model is in very good agreement with analytical solutions and with full 3D finite element computations.
journal_name
J Mech Behav Biomed Materauthors
Roohbakhshan F,Duong TX,Sauer RAdoi
10.1016/j.jmbbm.2015.09.001subject
Has Abstractpub_date
2016-05-01 00:00:00pages
90-104eissn
1751-6161issn
1878-0180pii
S1751-6161(15)00328-8journal_volume
58pub_type
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