Study on Material Parameters Identification of Brain Tissue Considering Uncertainty of Friction Coefficient
Study on Material Parameters Identification of Brain Tissue Considering Uncertainty of Friction Coefficient
复制标题
考虑摩擦系数不确定性的脑组织材料参数辨识研究
DOI:
10.1088/1757-899x/250/1/012049
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发表时间:
2017-10
期刊:
影响因子:
--
通讯作者:
Xu Luo
中科院分区:
文献类型:
--
作者:
Fengjiao Guan;Guanjun Zhang;Jie Liu;Shujing Wang;Xu Luo
Accurate material parameters are critical to construct the high biofidelity finite element (FE) models. However, it is hard to obtain the brain tissue parameters accurately because of the effects of irregular geometry and uncertain boundary conditions. Considering the complexity of material test and the uncertainty of friction coefficient, a computational inverse method for viscoelastic material parameters identification of brain tissue is presented based on the interval analysis method. Firstly, the intervals are used to quantify the friction coefficient in the boundary condition. And then the inverse problem of material parameters identification under uncertain friction coefficient is transformed into two types of deterministic inverse problem. Finally the intelligent optimization algorithm is used to solve the two types of deterministic inverse problems quickly and accurately, and the range of material parameters can be easily acquired with no need of a variety of samples. The efficiency and convergence of this method are demonstrated by the material parameters identification of thalamus. The proposed method provides a potential effective tool for building high biofidelity human finite element model in the study of traffic accident injury.
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影响因子:
2.4
作者:
H. Wang;G. Ateshian
通讯作者:
H. Wang;G. Ateshian
DOI:
10.4271/973339
发表时间:
1997-11
期刊:
SAE transactions
影响因子:
--
作者:
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Ho-Sung Kang;R. Willinger;B. Diaw;B. Chinn
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2.4
作者:
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A. S. Al-Bsharat;W. Hardy;King H. Yang;T. Khalil;S. Tashman;A. King
DOI:
--
发表时间:
1997
期刊:
--
影响因子:
--
作者:
C. Zhou;T. Khalil;A. King
通讯作者:
C. Zhou;T. Khalil;A. King