@inbook{764847fd667e455c8c76bf4d0306dad7,
title = "Heart Mechanical Model Based on Holzapfel Experiments",
abstract = "We have formulated orthotropic material model for human heart tissue based on experimental investigation of passive material properties of myocardium [1]. The Cauchy stress/stretch and shear stress/amount of shear relation curves are used, which are established experimentally under different loading conditions: biaxial extension and triaxial shear. The averaged curves obtained from all considered specimens in [1] are reconstructed and used in our FE computational model. A computational procedure for determination of stresses for current stretches and amounts of shear at integration points of the FE model is implemented in the code PAK. Compressibility condition is imposed to couple the normal stresses using a penalty formulation. Applicability and reliability of this material model is tested on simple 3D models and on a heart wall segment under passive conditions. This numerical model offers an accurate description of the ventricular mechanics and can be used in studying heart problems in order to improve medical treatment of heart diseases.",
keywords = "Biaxial loading, Heart material model, Heart mechanics, Sommer and Holzapfel experiment",
author = "Milos Kojic and Miljan Milosevic and Bogdan Milicevic and Vladimir Simic",
note = "Publisher Copyright: {\textcopyright} 2020, Springer Nature Switzerland AG.",
year = "2020",
doi = "10.1007/978-3-030-43658-2_2",
language = "English (US)",
series = "Learning and Analytics in Intelligent Systems",
publisher = "Springer Nature",
pages = "12--21",
booktitle = "Learning and Analytics in Intelligent Systems",
address = "United States",
}