文章摘要
Simulation of Cardiac Mathematical Model Based on Hyperelastic Materials
Received:November 12, 2018  Revised:November 12, 2018
DOI：10.12136/j.issn.1000-890X.2019.08.0577
Key Words: cardiac；hyperelastic material；mathematical model；anisotropy；iterative convergence
Author NameAffiliationE-mail
TIAN Liang* Xi'an Technological University 714966154@qq.com 
FAN Qingming Xi’an Technological University  
CAO Yan Xi’an Technological University  
ZHAO Han Xi’an Technological University  
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Abstract:
      In view of the mechanical characteristics of large deformation，nonlinearity，anisotropy and high strain rate during cardiac motion，the hyperelastic material mathematical model considering strain rate effect was used for finite element analysis，and the relevant parameters of three constitutive models，i.e.isotropic，transverse isotropic and anisotropic，were obtained.By comparing the number of Newton iterations and CPU time needed to solve the three models，the anisotropic constitutive model was selected as the constitutive model of cardiac kinematics simulation，which could provide reference and data support for subsequent cardiac mechanics modeling，physiological analysis and mathematical model iteration calculation.
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