Material Parameter Sensitivity of Predicted Injury in the Lower Leg

Abstract

This report documents the extensive work done on the lower leg finite element model, specifically on the sensitivity of injury prediction on linear elastic material parameters that are chosen within a range of values typically used for biological tissues. Using simple criteria, we predict a variety of injuries typically observed in theater. We find a strong dependence of these predicted injuries on the soft tissue properties included in our model. We also report on a potential oversensitivity in our model to predicting talus injuries. We conclude that biological variability in measured material parameters will need to be accounted for in future models.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2015
Accession Number
ADA617193

Entities

People

  • Adam Sokolow
  • Megan L. Lynch
  • Samantha L. Wozniak

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Body Regions
  • Bulk Modulus
  • Casualties
  • Connective Tissue
  • Elastic Materials
  • Elastic Waves
  • Foot
  • Foot Bones
  • Joints (Anatomy)
  • Lower Extremity
  • Materials
  • Mechanics
  • Military Research
  • Modulus Of Elasticity
  • Soft Tissues
  • Tissues
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Neurotrauma and Rehabilitation Medicine.