In the figure below, the mesh uses truss elements (T3D2) for the chordae. The mechanical constitutive behavior is hyperelastic with a Marlow form of strain energy potential. The uniaxial test data used as input into the constitutive law was derived from Kunzelman and Cochran. The chordae are coupled to the ventricular papillary muscles and mitral/tricuspid valves via tie constraints. |