000014339 001__ 14339
000014339 005__ 20161115100148.0
000014339 04107 $$aeng
000014339 046__ $$k2016-08-21
000014339 100__ $$aKesari, Haneesh
000014339 24500 $$aEnhancement of buckling strength in the tapered skeletal elements of marine sponges

000014339 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014339 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014339 506__ $$arestricted
000014339 520__ $$2eng$$aBiological structures, such as stems and bones, possess some very distinct mechanical designs. By comparing variants of these designs using synthetic materials, scientists have shown that bio-inspired designs can lead to an enhancement of the materials’ properties. However, a major criticism of pursuing bio-inspired engineering has been that there are scarcely any examples of structural biomaterials that have been rigorously shown to contain a close-to-optimal design. To address this criticism, we discuss the skeletal elements of the marine sponge Tethya aurantia called spicules, which are monolithic silica rods that are 1–2 mm long, 30–50 µm thick. The spicules’ mechanical effectiveness is primarily limited by their buckling strength. Spicules possess a distinct taper along their length. Using recent mathematical results, mechanical testing and computational modeling we show that the spicules’ tapered shape is very close to the shape that has the greatest buckling strength.

000014339 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014339 653__ $$a

000014339 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014339 720__ $$aKesari, Haneesh
000014339 8560_ $$ffischerc@itam.cas.cz
000014339 8564_ $$s54107$$uhttps://invenio.itam.cas.cz/record/14339/files/PO.SM14-1.07.311.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2823, code PO.SM14-1.07.311
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000014339 962__ $$r13812
000014339 980__ $$aPAPER