A viscoactive constitutive modeling framework with variational updates for the myocardium

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• 作者：A.V.S. Ponnaluri^a ; ^{adityaponnaluri@ucla.edu} ; L.E. Perotti^b ; ^c ; ^{luigiemp@ucla.edu} ; D.B. Ennis^b ; ^c ; ^{dennis@mednet.ucla.edu} ; W.S. Klug^a
• 关键词：Constitutive modeling ; Myocardium ; Active contraction ; Variational update
• 刊名：Computer Methods in Applied Mechanics and Engineering
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：314
• 期：Complete
• 页码：85-101
• 全文大小：2586 K
• 卷排序：314

文摘

Unifying constitutive modeling framework to simulate cardiac contraction. Hill-like three element model together with a viscous dashpot. Single variational principle for stress–strain relations and kinetic rate equations. Hill’s force–velocity relationship as the basis for the kinetic equations. Simulated contraction of a representative left ventricle geometry using FEM.