An Analytical Investigation of the Cavitation Hypothesis of Brain Damage

Author:

Benedict J. V.1,Harris E. H.2,von Rosenberg D. U.3

Affiliation:

1. Technology Inc., 8531 N. New Braunfels Ave., San Antonio, Texas

2. Department of Mechanical Engineering, Tulane University, New Orleans, La.

3. Department of Chemical Engineering, Tulane University, New Orleans, La.

Abstract

An analytic investigation of the cavitation hypothesis of brain injury is performed by designing a mathematical model of the skull and brain subjected to an impact load. The skull is characterized as a thin, homogeneous, isotropic, elastic spherical shell, and the brain is assumed to be an ideal acoustic fluid. Using extensional shell theory, the skull-brain system is described by three coupled, simultaneous, linear partial differential equations with variable coefficients. The equations are solved by finite difference techniques. Results demonstrate that two prime focal points of reduced pressure occur within the fluid shortly after the onset of impact. These are located at the impact pole and at the counter pole or “contrecoup” site.

Publisher

ASME International

Subject

General Medicine

Cited by 24 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Modeling Traumatic Brain Injuries, Aneurysms, and Strokes;Fields Institute Monographs;2019

2. Traumatic Brain Injury: Models and Mechanisms of Traumatic Brain Injury;Biomechanical Principles and Applications in Sports;2019

3. Controlled single bubble cavitation collapse results in jet-induced injury in brain tissue;Journal of the Mechanical Behavior of Biomedical Materials;2017-10

4. Biomechanical Perspective on Blast Injury;Concussive Brain Trauma;2011-09-20

5. EXPERIMENTAL BRAIN DAMAGE FROM FLUID PRESSURES DUE TO IMPACT ACCELERATION. 3. Morphological Observations;Acta Neurologica Scandinavica;2009-01-29

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