An Approach to Head Impact Analysis

Abstract

Presently, many mathematical models of response to head impact are based on a thin elastic shell filled with an inviscid fluid. While these models serve as starting points, anatomic and physiologic considerations indicate that many areas for improvement exist. Research has been recently initiated to determine the behavior of the multi-layered viscoelastic and elastic-plastic brain protection system in response to impact loading. Geometrically simplifeid layered mathematical models are proposed to evaluate the importance of viscous, plastic, and layering effects within the model. Dynamic material testing has been performed on photoelastic models to demonstrate stress wave propagation through the cavities within the diploe region.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0740464

Entities

People

  • Gordon Moskowitz
  • Joseph Rose
  • Stephen M. Gordon

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Biomedical Engineering
  • Engineering
  • Head (Anatomy)
  • Head Injuries
  • Mathematical Models
  • Mechanical Engineering
  • Mechanical Properties
  • Models
  • Modulus Of Elasticity
  • Physical Properties
  • Skull
  • Strain Rate
  • Stress Strain Relations
  • Stress Waves
  • Stresses
  • Universities
  • Wave Propagation

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Materials Science (Mechanical Engineering).