The non-linear response of a muscle in transverse compression: assessment of geometry influence using a finite element model

Laure-Lise Gras, David Mitton, Nathalie Crevier-Denoix and Sébastien Laporte

Computer Methods in Biomechanics and Biomedical Engineering, 2012, vol. 15, issue 1, 13-21

Abstract: Most recent finite element models that represent muscles are generic or subject-specific models that use complex, constitutive laws. Identification of the parameters of such complex, constitutive laws could be an important limit for subject-specific approaches. The aim of this study was to assess the possibility of modelling muscle behaviour in compression with a parametric model and a simple, constitutive law. A quasi-static compression test was performed on the muscles of dogs. A parametric finite element model was designed using a linear, elastic, constitutive law. A multi-variate analysis was performed to assess the effects of geometry on muscle response. An inverse method was used to define Young's modulus. The non-linear response of the muscles was obtained using a subject-specific geometry and a linear elastic law. Thus, a simple muscle model can be used to have a bio-faithful, biomechanical response.

Date: 2012
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DOI: 10.1080/10255842.2011.564162

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