MICROSTRUCTURAL MODELS OF TRABECULAR BONE COMPARISON OF CT-BASED FE MODELS
Abstract eng: In the article a detailed comparison of techniques used to develop detailed FE models of trabecular bone microstructure is presented. The FE models are built using a stack of microtomographic images of trabecular bone of 35μm3 spatial resolution. Compression test of a cylindrical sample taken from human proximal femur is virtually performed using FE models developed using different procedures. Effect of improper segmentation (deficiency/excess of bone volume), mesh smoothing, mesh density, use of hexahedral/tetrahedral elements, linear/quadratic shape functions is evaluated in a parametric study. Material model used in the study is based on results from nanoindentation. Obtained elastic properties of the sample are compared to experimental results from compression test.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
Engineering Mechanics 2011
Conference Venue:
Svratka (CZ)
Conference Dates:
2011-05-09 / 2011-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-10-24, last modified 2014-11-18
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