Land Operations Division, Defence Science & Technology Organisation, Adelaide, SA, Australia,
Cogn Neurodyn. 2009 Sep;3(3):281-93. doi: 10.1007/s11571-008-9070-0. Epub 2008 Nov 23.
The prediction and prevention of traumatic brain injury is a very important aspect of preventive medical science. This paper proposes a new coupled loading-rate hypothesis for the traumatic brain injury (TBI), which states that the main cause of the TBI is an external Euclidean jolt, or SE(3)-jolt, an impulsive loading that strikes the head in several coupled degrees-of-freedom simultaneously. To show this, based on the previously defined covariant force law, we formulate the coupled Newton-Euler dynamics of brain's micro-motions within the cerebrospinal fluid and derive from it the coupled SE(3)-jolt dynamics. The SE(3)-jolt is a cause of the TBI in two forms of brain's rapid discontinuous deformations: translational dislocations and rotational disclinations. Brain's dislocations and disclinations, caused by the SE(3)-jolt, are described using the Cosserat multipolar viscoelastic continuum brain model.
创伤性脑损伤的预测和预防是预防医学科学的一个非常重要的方面。本文提出了一个新的创伤性脑损伤（TBI）的耦合加载速率假说，该假说指出TBI 的主要原因是外部欧几里得冲击，或 SE(3)-冲击，即同时冲击头部的几个耦合自由度的脉冲加载。为了证明这一点，基于之前定义的协变力定律，我们构建了脑微运动在脑脊液中的耦合牛顿-欧拉动力学，并从中推导出耦合 SE(3)-冲击动力学。SE(3)-冲击是脑的两种快速不连续变形形式的 TBI 的原因：平移脱位和旋转偏折。由 SE(3)-冲击引起的脑的脱位和偏折，使用 Cosserat 多极黏弹性连续体脑模型来描述。
