A novel microstructurally-based material model to describe passive skeletal muscle tissue

Abstract eng:
Like for many biological materials, the elastic properties of skeletal muscle tissue can vary quite significantly between different specimen, for example, from person to person or due to different muscle fibre types. This is mainly due to alterations of the properties or the arrangement of microstructural elements, such as, for example, sarcomeres or connective tissue. Further, these microstructural variations also influence the anisotropic properties of the material. Current state-of-the-art muscle models often lack the ability to take into account such variations in a natural way. They assume a phenomenological behaviour for the overall material properties. To overcome this issue, we propose a novel, homogenised material model, which predicts the anisotropic behaviour of muscle tissue by incorporating the arrangement of the underlying microstructures.

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