Engineering Mechanics

Proceedings Vol. 11 (2005)

ENGINEERING MECHANICS 2005

Copyright © 2005 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno

 

Kytýř D., Jírová J., Jiroušek O.
pages 193 - +7p., full text

Methods for  fully­ automatic  generation of FE model  are  shortly discussed in the paper. There are two basic principles of reconstruction, voxel­ based and volume­ based methods. The voxel   model   generation   is   based   on checking all pixel values and defining voxels by means of the selected pixels. Development of the volume model is usually divided into three procedures: tissue segmentation, contour  model definition  and surface area definition.  Three FE models of  femur were considered: (i) cortical model (ii) spongio­cortical model with homogeneous cancellous tissue (iii) spongio­cortical   model   with heterogeneous cancellous tissue. These models were compared in a simple stress analysis. FE analyses results of all these models are compared with results of experiments conducted using fresh cadaver femur and strain­gauge measurement.

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