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Micro-mechanical properties of different sites on woodpecker’s skull.
- Source :
-
Computer Methods in Biomechanics & Biomedical Engineering . Nov2017, Vol. 20 Issue 14, p1483-1493. 11p. - Publication Year :
- 2017
-
Abstract
- The uneven distributed microstructure featured with plate-like spongy bone in woodpecker’s skull has been found to further help reduce the impact during woodpecker’s pecking behavior. Therefore, this work was to investigate the micro-mechanical properties and composition on different sites of Great Spotted woodpecker’s (GSW) skull. Different sites were selected on forehead, tempus and occiput, which were also compared with those of Eurasian Hoopoe (EH) and Lark birds (LB). Micro structural parameters assessed from micro computed tomography (μCT) occurred significantly difference between GSW, EH and LB. The micro finite element (micro-FE) models were developed and the simulation was performed as a compression process. The maximal stresses of GSW’s micro-FE models were all lower than those of EH and LB respectively and few concentrated stresses were noticed on GSW’s trabecular bone. Fourier transform infrared mapping suggesting a greater organic content in the occiput of GSW’s cranial bone compared with others. The nano-hardness of the GSW’s occiput was decreasing from forehead to occiput. The mechanical properties, site-dependent hardness distribution and special material composition of GSW’s skull bone are newly found in this study. These factors may lead to a new design of bulk material mimicking these characteristics. [ABSTRACT FROM PUBLISHER]
- Subjects :
- *WOODPECKERS
*SKULL
*MICROMECHANICS
*COMPUTED tomography
*CANCELLOUS bone
*ANATOMY
Subjects
Details
- Language :
- English
- ISSN :
- 10255842
- Volume :
- 20
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- Computer Methods in Biomechanics & Biomedical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 126411455
- Full Text :
- https://doi.org/10.1080/10255842.2017.1378648