Computer aided stress analysis of long bones utilizing computed tomography

Document Type

Article

Publication Date

1-1-1990

Abstract

A computer aided analysis method has been developed which utilizes computed tomography (CT) and a finite element (FE) computer program to determine the stress-displacement pattern in a long bone section. The CT data file provides the geometry, the apparent density and the elastic properties for the three-dimensional FE model. A developed pre-processor generates the FE model of a human diaphyseal tibia section which is then analyzed by the SAP IV finite element program. The results obtained are sorted and displayed by a developed post-processor and compared with stresses and deformations from the literature. The model generation method was verified by applying it to a model of simple geometry and boundary conditions, then comparing the results with the analytical solution of the same problem. The convergence behavior of nodal displacements was tested as a function of mesh refinement. This method provides an automatic, versatile, non-invasive and accurate tool of long bone modeling for finite element stress analysis. © 1990.

Identifier

0025332851 (Scopus)

Publication Title

Journal of Biomechanics

External Full Text Location

https://doi.org/10.1016/0021-9290(90)90294-D

ISSN

00219290

PubMed ID

2373712

First Page

399

Last Page

404

Issue

5

Volume

23

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