Validation of a heterogeneous elastic-biphasic model for the numerical simulation of the PDL

Validation of a heterogeneous elastic-biphasic model for the numerical simulation of the PDL
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用于 PDL 数值模拟的异质弹性双相模型的验证

DOI:
10.1080/10255842.2011.628660
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发表时间:
2013
影响因子:
1.6
通讯作者:
Krause R.
Krause R.
中科院分区:
工程技术4区
文献类型:
--
作者:
Favino M;Gross C;Drolshagen M;Keilig L;Deschner J;Bourauel C;Krause R.

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提出并研究了一种用于模拟牙周膜和邻牙的弹性双相模型。PDL被建模为遵循功的两相材料),而牙齿被建模为线弹性体。提出了一种基于混合有限元的空间离散方案。由于模型中的非线性,预测-校正方案被用作时间离散化方案。为了验证PDL模型的有效性,将室内测量结果与数值模拟进行了比较。数值模拟是使用同一颗猪牙齿的Micro-CT扫描仪产生的几何形状进行的,该扫描仪用于体外测量。
An elastic-biphasic model for the simulation of the periodontal ligament (PDL) and the adjacent tooth is presented and investigated. The PDL is modelled as a biphasic material following the work of ), whereas the tooth is modelled as a linear elastic body. A spatial discretisation scheme is proposed based on mixed finite elements for the spatial discretisation. Due to nonlinearity in the model, a predictor–corrector scheme is employed as a temporal discretisation scheme. In order to validate the PDL model,in vitromeasurements are compared with numerical simulations. The numerical simulations are performed using geometries resulting from micro-CT scanner of the same porcine tooth, which was employed for theinvitromeasurements.
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