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
Nardinocchi, P., Teresi, L. (2013). Electromechanical modeling of anisotropic cardiac tissues. MATHEMATICS AND MECHANICS OF SOLIDS, 18(6), 576-591 [10.1177/1081286513485774].