Development and Implementation of a Transversely Isotropic Hyperelastic Constitutive Model With Two Fiber Families to Represent Anisotropic Soft Biological Tissues

Abstract

We developed a transversely isotropic hyperelastic constitutive model to capture the anisotropy of the spinal intervertebral discs. The constitutive model was implemented in the finite element code SIERRA/SolidMechanics. This report documents the continuum theory of a transversely isotropic hyperelastic constitutive model with two fiber families and verifies the implementation of the numerical model on a variety of single element tests. The algorithm used to apply this model to spinal intervertebral discs is covered in depth, and an example simulation result is shown. Application of this model to other biological tissues, such as brain tissue and skeletal muscles, is also discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2014
Accession Number
ADA606807

Entities

People

  • Adam Sokolow
  • Samantha L. Wozniak

Organizations

  • Oak Ridge Institute for Science and Education

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Bioengineering
  • Biomedical Engineering
  • Bone Diseases
  • Composite Materials
  • Coordinate Systems
  • Engineering
  • Finite Element Analysis
  • Geometry
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Shear Stresses
  • Skeletal Muscle
  • Spinal Column
  • Spine

Readers

  • Database Systems and Applications
  • Immunology and Pathology
  • Structural Dynamics.