VISCOELASTIC RESPONSE OF THE HUMAN BRAIN TO SAGITTAL AND LATERAL ROTATIONAL ACCELERATION BY FINITE ELEMENT ANALYSIS
VISCOELASTIC RESPONSE OF THE HUMAN BRAIN TO SAGITTAL AND LATERAL ROTATIONAL ACCELERATION BY FINITE ELEMENT ANALYSIS
复制标题
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
C. Zhou;T. Khalil;A. King
中科院分区：
文献类型：
--
作者：
C. Zhou;T. Khalil;A. King
本研究使用了一种新的三维人头有限元模型--WSU脑损伤模型，它代表了男性头部的50%百分位数，用于研究大脑对旋转碰撞的反应。从J.M.Abel的猴子测试数据(1978)中提取的角加速度脉冲被用来研究人类大脑的反应。所使用的缩放方法保持了大脑中大致相等的剪切应变水平和头部的相等位移。得到了大脑对脉冲矢向和横向旋转加速度的粘弹性响应。研究发现，矢状和侧向旋转撞击的大脑反应不同。研究了脑材料性质对模型反应的影响。(A)会议摘要见IRRD E201282。
In this study a new three-dimensional human head finite element model (FEM), the WSU Brain Injury Model, representing a 50th percentile male human head, was used to study brain response to rotational impacts. An angular acceleration pulse taken from J.M. Abel's monkey test data (1978) was scaled to study human brain response. The scaling method used maintained approximately equal shear strain level in the brain and equal displacement of the head. Viscoelastic responses of the brain to impulsive sagittal and lateral rotational accelerations were obtained. Differences in brain response between sagittal and lateral rotational impact were found. The influence of the brain material properties on model response was investigated. (A) For the covering abstract of the conference see IRRD E201282.