A penetration-based finite element method for hyperelastic 3D biphasic tissues in contact:: Part 1 -: Derivation of contact boundary conditions
A penetration-based finite element method for hyperelastic 3D biphasic tissues in contact:: Part 1 -: Derivation of contact boundary conditions
复制标题
DOI：
10.1115/1.2133769
复制
发表时间：
2006-02-01
影响因子：
1.7
通讯作者：
Spilker, RL
中科院分区：
文献类型：
--
作者：
Ün, K;Spilker, RL
在这项研究中，我们扩展的渗透方法，以前介绍了一种有效的方式与有限元法模拟contactof线性水合组织，非线性双相组织接触的问题。本文提出了一种双相组织与超弹性固相接触的边界条件的推导使用实验运动学数据。验证的方法来计算这些边界条件的证明使用典型的两相接触问题。该方法，然后证明，肩关节模型与肱骨和关节盂组织接触。在这两个典型的和肩膀的例子中，得到的边界条件被发现，以满足动力学的连续性要求的两相接触。这些边界条件代表了三维非线性双相有限元分析的输入;该有限元分析的细节将在随后的手稿中介绍。
In this study, we extend the penetration method, previously introduced to simulate contactof linear hydrated tissues in an efficient manner with the finite element method, to problems of nonlinear biphasic tissues in contact. This paper presents the derivation of contact boundary conditions for a biphasic tissue with hyperelastic solid phase using experimental kinematics data. Validation of the method for calculating these boundary conditions is demonstrated using a canonical biphasic contact problem. The method is then demonstrated on, a shoulder joint model with contacting humerus and glenoid tissues. In both the canonical and shoulder examples, the resulting boundary conditions are found to satisfy the kinetic continuity requirements of biphasic contact. These boundary conditions represent input to a three-dimensional nonlinear biphasic finite element analysis; details of that finite element analysis will be presented in a manuscript to follow.