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TECHNICAL BRIEFS

A Model for Estimating Corneal Stiffness Using an Indenter

[+] Author and Article Information
Peter H. Carnell, Raymond P. Vito

School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J Biomech Eng 114(4), 549-552 (Nov 01, 1992) (4 pages) doi:10.1115/1.2894111 History: Received June 25, 1991; Revised March 07, 1992; Online March 17, 2008

Abstract

A finite element model that simulates indentation of the cornea was generated to examine the feasibility of using indentation data to determine mechanical properties. A layered model which included geometric nonlinearities was necessary to characterize the indentation process. Results indicate that a secant modulus could be determined by measuring indenter force and contact area.

Copyright © 1992 by The American Society of Mechanical Engineers
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