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TECHNICAL PAPERS

A Constitutive Relationship for Large Deformation Finite Element Modeling of Brain Tissue

[+] Author and Article Information
K. K. Mendis

EASi Engineering, Bingham Farms, MI 48025

R. L. Stalnaker

Department of Mechanical Engineering, Ohio State University, Columbus, OH 43210

S. H. Advani

College of Engineering and Applied Sciences, Lehigh University, Bethlehem, PA 18015

J Biomech Eng 117(3), 279-285 (Aug 01, 1995) (7 pages) doi:10.1115/1.2794182 History: Received August 15, 1991; Revised October 19, 1994; Online October 30, 2007

Abstract

Finite element modeling of the finite deformation response of soft tissues presents a formidable challenge. This paper discusses the use of a large strain constitutive relationship suitable for modeling brain tissue as well as other soft biological tissue. Available experimental data on the finite deformation response of brain tissue is used to characterize the constitutive properties. Analytical modeling and finite element simulations of the experiment are performed using the proposed constitutive formulation. The numerical results compare favorably with the experimental data.

Copyright © 1995 by The American Society of Mechanical Engineers
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