New mechanics of traumatic brain injury

作者：Ivancevic Vladimir G^*

来源：Cognitive Neurodynamics, 2009, 3(3): 281-293.

DOI：10.1007/s11571-008-9070-0

• Traumatic brain injuries
• Coupled loading-rate hypothesis
• Euclidean jolt
• Coupled Newton-Euler dynamics
• Brain's dislocations and disclinations

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.

• 出版日期2009-9