Journal
MATHEMATICS AND MECHANICS OF SOLIDS
Volume 18, Issue 6, Pages 576-591Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1081286513485774
Keywords
Non-linear elasticity; active contractions; anisotropic response; reaction-diffusion systems
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Funding
- MIUR (the Italian Ministry of University and Research)
- Sapienza Universita di Roma [C26A11STT5]
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We model cardiac muscle contractions in the framework of finite elasticity with large distortions and couple a mechanical model with reaction-diffusion equations representing electrophysiological activity. Both models are implemented using anisotropic constitutive relations: we use stress-strain relations for fiber-reinforced materials, and anisotropic diffusion tensors for both the membrane potential and calcium ions. The effects of these choices on the electromechanical behavior are presented and discussed.
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