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Journal article
Characterization of load bearing metrological parameters in reptilian exuviae in comparison to precision-finished cylinder liner surfaces
Surface topography metrology and properties, v 2(4), p25
01 Oct 2014
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Design of precise functional surfaces is essential for many future applications. In the technological realm, the accumulated experience with construction of such surfaces is not sufficient. Nature provides many examples of dynamic surfaces worthy of study and adoption, at least in concept, within human engineering. This work probes the load-bearing metrological features of the ventral skin in snakes. We examine the structure of two snake species that mainly move by rectilinear locomotion. These are Python regius (Pythonidae) and Bitis gabonica (Vipridae). To this end, we focus on the load-bearing characteristics of the ventral skin surface (i.e., the Sk family of parameters). Therefore, detailed comparison is drawn between the metrological structure of the reptilian surfaces and two sets of technological data. The first set pertains to an actual commercial cylinder liner, whereas the second set is a summary of recommended surface finish metrological values for several commercial cylinder liner manufacturers. The results highlight several similarities between the two types of surfaces. In particular, it is shown that there is a striking correspondence between the sense of texture morphology within both surfaces (although their construction evolved along entirely different paths). It is also shown that reptilian surfaces manifest a high degree of specialization with respect to habitat constraints on wear resistance and adhesive effects. In particular, their surface displays a high degree of pre-conditioning to functional requirements, which eliminates the need for a running-in period.
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Details
- Title
- Characterization of load bearing metrological parameters in reptilian exuviae in comparison to precision-finished cylinder liner surfaces
- Creators
- H A Abdel-Aal - Drexel UniversityM El Mansori - Ecole Nationale Supérieure d’Arts et Métiers, 2 Cours des Arts et Métiers, Aix En Provence Cedex 1, France
- Publication Details
- Surface topography metrology and properties, v 2(4), p25
- Publisher
- IOP Publishing
- Number of pages
- 25
- Resource Type
- Journal article
- Language
- English
- Web of Science ID
- WOS:000218704200007
- Scopus ID
- 2-s2.0-84979195948
- Other Identifier
- 991019312443404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Mechanical
- Instruments & Instrumentation
- Materials Science, Multidisciplinary