A Mathematical Model for the Behavior of the Brain When the Human Head Is Subjected to Impulsive Loads

Abstract

The subject matter of this paper is concerned with the theoretical determination of the behavior of the brain when the human head is subjected to external impulsive loads. The mathematical analysis is made for the axisymmetric response of an inviscid compressible fluid loaded impulsively by its elastic spherical shell container. In the analysis first the solution for an initial value problem is obtained; later the transient response of the fluid for an arbitrary velocity input of the shell is constructed by means of convolution integral. For the numerical results, a characteristic time is defined and the excess pressure distribution in the fluid is evaluated for various deceleration times comparable with this characteristic time.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0740473

Entities

People

  • Ali E. Engin
  • Verne L. Roberts

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Bessel Functions
  • Boundaries
  • Brain Injuries
  • Coefficients
  • Deceleration
  • Differential Equations
  • Dynamic Response
  • Equations
  • Frequency
  • Integrals
  • Modulus Of Elasticity
  • Partial Differential Equations
  • Physical Properties
  • Physical Theories
  • Polynomials
  • Pressure Distribution
  • Wave Equations

Fields of Study

  • Mathematics

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.