A polyconvex anisotropic strain–energy function for soft collagenous tissues

A polyconvex anisotropic strain–energy function for soft collagenous tissues
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软胶原组织的多凸各向异性应变-能量函数

DOI:
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发表时间:
2006
影响因子:
3.5
通讯作者:
D. Mavrilas
D. Mavrilas
中科院分区:
工程技术2区
文献类型:
--
作者:
M. Itskov;A. E. Ehret;D. Mavrilas

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应变能量函数的多凸性是一个非常重要的数学条件,特别是在边值问题的背景下。在本文中,我们提出了指数多凸各向异性应变能量函数。它由具有任意数量的项和相关材料常数的级数给出。该系列的每一项先验地满足无能量和无应力自然状态的条件,因此不必施加额外的限制。由于指数形式,所提出的超弹性模型适用于软生物组织。因此,与不同类型组织的实验数据取得了良好的一致性。
Polyconvexity of a strain–energy function is a very important mathematical condition, especially in the context of a boundary-value problem. In the present paper, we propose an exponential polyconvex anisotropic strain–energy function. It is given by a series with an arbitrary number of terms and associated material constants. Each term of this series a priori satisfies the condition of the energy- and stress-free natural state so that no additional restrictions have to be imposed. Due to the exponential form, the proposed hyperelastic model is suitable for soft biological tissues. Thus, a good agreement with experimental data on different types of tissues is achieved.
DOI: 10.1115/1.3138417
发表时间: 1983-01-01
影响因子: 1.7
作者:
CHUONG, CJ;FUNG, YC
通讯作者: FUNG, YC