Development of a Strain Rate Dependent Long Bone Injury Criterion for Use with the ATB Model.

Abstract

An improved version of a previously reported long bone injury criterion has been developed. This new criterion was based on fitting the Ramberg-Osgood equation, through optimization techniques, to existing stress-strain-strain rate curves for compact bone and using this equation to solve for the strain at a time step given the current stress and the strain from the previous time. Refinements have also been made to the geometric modeling of the bones where adequate data existed. When coupled with the Articulated Total Body (ATB) model and relations between ultimate stress and strain rate, this criterion has provided an effective means of judging long bone injury potential.

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Document Details

Document Type
Technical Report
Publication Date
Jan 12, 1982
Accession Number
ADA112458

Entities

People

  • Timothy K. Hight

Organizations

  • Duke University

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Aircrafts
  • Bone Fractures
  • Compression
  • Computer Programs
  • Computers
  • Elastic Properties
  • Equations
  • Geometry
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Yield Strength

Readers

  • Computational Fluid Dynamics (CFD)
  • Immunology and Pathology
  • Mechanical Engineering/Mechanics of Materials.