Biomedical Engineering Reference
In-Depth Information
Notched
Smooth
140
Experimental data (30 mm/min)
Experimental data (150 mm/min)
HM prediction (30 mm/min)
HM prediction (150 mm/min)
120
100
80
60
40
20
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
True strain
FIGUre 15.3 (See color insert.)
finite element models (top) to simu-
late tensile testing of smooth and notched rod biomaterial samples,
with corresponding finite element results and physical experiments
demonstrating good concordance.
an FE model include a clinically relevant representation of the geometry,
material properties, applied loads, boundary conditions, and interface
(contact) conditions. After validation of the FE model, virtual experi-
ments can be performed to simulate conditions experienced by the bio-
material. Basic analyses can easily be extended in a parametric study
to include considerations of expected variations in design, surgical, and
patient factors. When developed and analyzed carefully, FE models can
provide valuable insight into the clinical performance and potential fail-
ure modes of a biomaterial. In addition to analysis of the mechanical
response, these models can be developed further to examine fluid and
thermal responses.
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