A visco-hyperelastic model for skeletal muscle tissue under high strain rates.
biomechanical · Level V
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- Record sourced from PubMed, PMID 20566197.
- Also identified by DOI 10.1016/j.jbiomech.2010.05.030.
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Abstract
In this paper, a visco-hyperelastic skeletal muscle model is developed. The constitutive relation is based on the definition of a Helmholtz free energy function. It is assumed that the Helmholtz energy can be decomposed into volumetric and isochoric parts; furthermore, the isochoric energy can be decoupled into hyperelastic and viscous parts. The model developed involves 14 material parameters and its performance is evaluated by comparing the finite element simulation results with the published experimental studies on the New Zealand white rabbit tibialis anterior muscle. Results show that this model is able to describe the visco-hyperelastic behaviour of both passive and active skeletal muscle tissues under high strain rates (10/s and 25/s).
Medical subject headings
- Models, Biological
- Muscle, Skeletal
- Stress, Mechanical