Details
| Original language | English |
|---|---|
| Pages (from-to) | 68-74 |
| Number of pages | 7 |
| Journal | Studies in health technology and informatics |
| Volume | 133 |
| Publication status | Published - 2008 |
| Externally published | Yes |
Abstract
The fatigue behaviour of materials is of particular interest for the failure prediction of materials and structures exposed to cyclic loading. For trabecular bone structures only a few sets of lifetime data have been reported in the literature and structural measures are commonly not considered. The influence of load contributions not aligned with the main physiological axis remains unclear. Furthermore age effects on the fatigue behaviour are not well described. In the present study, different groups of human vertebral cancellous bone were exposed to cyclic compression. The inital modulus and therefore lifetimes were found to be highly dependent on age. The decrease in both with increasing age was much more pronounced in specimens which were not aligned with the main physiological axis. This implies that old bone is much more sensitive to (cyclic) failure loads in general but particularly to loads which are not coincident with the physiological main axis.
ASJC Scopus subject areas
- Engineering(all)
- Biomedical Engineering
- Medicine(all)
- Health Informatics
- Health Professions(all)
- Health Information Management
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In: Studies in health technology and informatics, Vol. 133, 2008, p. 68-74.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - How do anisotropy and age affect fatigue and damage in cancellous bone?
AU - Dendorfer, Sebastian
AU - Maier, Hans J.
AU - Hammer, Joachim
PY - 2008
Y1 - 2008
N2 - The fatigue behaviour of materials is of particular interest for the failure prediction of materials and structures exposed to cyclic loading. For trabecular bone structures only a few sets of lifetime data have been reported in the literature and structural measures are commonly not considered. The influence of load contributions not aligned with the main physiological axis remains unclear. Furthermore age effects on the fatigue behaviour are not well described. In the present study, different groups of human vertebral cancellous bone were exposed to cyclic compression. The inital modulus and therefore lifetimes were found to be highly dependent on age. The decrease in both with increasing age was much more pronounced in specimens which were not aligned with the main physiological axis. This implies that old bone is much more sensitive to (cyclic) failure loads in general but particularly to loads which are not coincident with the physiological main axis.
AB - The fatigue behaviour of materials is of particular interest for the failure prediction of materials and structures exposed to cyclic loading. For trabecular bone structures only a few sets of lifetime data have been reported in the literature and structural measures are commonly not considered. The influence of load contributions not aligned with the main physiological axis remains unclear. Furthermore age effects on the fatigue behaviour are not well described. In the present study, different groups of human vertebral cancellous bone were exposed to cyclic compression. The inital modulus and therefore lifetimes were found to be highly dependent on age. The decrease in both with increasing age was much more pronounced in specimens which were not aligned with the main physiological axis. This implies that old bone is much more sensitive to (cyclic) failure loads in general but particularly to loads which are not coincident with the physiological main axis.
UR - http://www.scopus.com/inward/record.url?scp=43849107962&partnerID=8YFLogxK
M3 - Article
C2 - 18376014
AN - SCOPUS:43849107962
VL - 133
SP - 68
EP - 74
JO - Studies in health technology and informatics
JF - Studies in health technology and informatics
SN - 0926-9630
ER -