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Buckling Behaviors of Staggered Nanostructure of Biological Materials
Bai ZL; Su YW(苏业旺); Ji BH
Source PublicationJournal of Applied Mechanics
2015-12-16
Volume83Issue:3Pages:031011
ISSN0021-8936
AbstractThe nanostructure of biological materials is built with hard mineral crystals embedded in soft protein matrix in a staggered manner. The staggered arrangement of the crystals is assumed to be critically important for the stability of the nanostructure. But the mechanism is not fully understood. In this paper, a mechanical model, considering the effects of overlapping ratio between the crystals, i.e., the staggering position, is developed for analyzing the buckling behaviors of the nanostructure. It is found that the buckling strength increases with the overlapping ratio λ in the range of 0–1/2 and reaches a peak value at λ = 1/2 that is generally adopted by nature's design of the biological materials. The effect of aspect ratio and volume fraction of mineral crystals are further analyzed at various overlapping ratios, and the results are in general consistent with previous studies for the case of λ = 1/2. In addition, the lower and upper limits of the buckling strength are obtained. Finally, we show that the contact between mineral tips can significantly enhance the buckling strength of the nanostructure when the aspect ratio of minerals is small.
DOI10.1115/1.4032116
Indexed BySCI ; EI
Language英语
WOS IDWOS:000369610500012
DepartmentLNM苏业旺
Classification一类/力学重要期刊
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58429
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Bai ZL,Su YW,Ji BH. Buckling Behaviors of Staggered Nanostructure of Biological Materials[J]. Journal of Applied Mechanics,2015,83(3):031011
APA Bai ZL,Su YW,&Ji BH.(2015).Buckling Behaviors of Staggered Nanostructure of Biological Materials.Journal of Applied Mechanics,83(3),031011.
MLA Bai ZL,et al."Buckling Behaviors of Staggered Nanostructure of Biological Materials".Journal of Applied Mechanics 83.3(2015):031011.
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