Design and Implementation of a Numerical Technique to Inform Anisotropic Hyperelastic Finite Element Models using Diffusion-Weighted Imaging

Abstract

A novel implementation of Diffusion-Weighted Imaging (DWI) into a finite element model is presented for capturing the anisotropic behavior of fibrous materials. The currently available finite element codes do not allow for the incorporation of anisotropic fiber directions that exist in biological soft tissues. The present work describes the continuum theory of transversely isotropic hyperelasticity, as well as the computational methods used to extract fiber directions from medical imaging data.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2011
Accession Number
ADA565877

Entities

People

  • Amy M Dagro
  • Reuben H Kraft

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Algorithms
  • Bioengineering
  • Brain Injuries
  • Computational Science
  • Continuum Mechanics
  • Department Of Defense
  • Diagnostic Imaging
  • Engineering
  • Hyperelastic Materials
  • Materials
  • Mechanics
  • Military Research
  • Orientation (Direction)
  • Physics Laboratories
  • Skeletal Muscle
  • Three Dimensional
  • Tissues

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.
  • Medical Imaging.