A case for poroelasticity in skeletal muscle finite element analysis: experiment and modeling

Benjamin B. Wheatley, Gregory M. Odegard, Kenton R. Kaufman and Tammy L. Haut Donahue

Computer Methods in Biomechanics and Biomedical Engineering, 2017, vol. 20, issue 6, 598-601

Abstract: Finite element models of skeletal muscle typically ignore the biphasic nature of the tissue, associating any time dependence with a viscoelastic formulation. In this study, direct experimental measurement of permeability was conducted as a function of specimen orientation and strain. A finite element model was developed to identify how various permeability formulations affect compressive response of the tissue. Experimental and modeling results suggest the assumption of a constant, isotropic permeability is appropriate. A viscoelastic only model differed considerably from a visco-poroelastic model, suggesting the latter is more appropriate for compressive studies.

Date: 2017
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DOI: 10.1080/10255842.2016.1268132

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