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学科主题: 药学
题名:
Microstructure and nanomechanical properties of the wing membrane of dragonfly
作者: Song, F.; Xiao, K. W.; Bai, K.; Bai, Y. L.
关键词: microstructure ; surface structure ; mechanical properties ; surface analysis ; membrane
刊名: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
发表日期: 2007-05-25
DOI: 10.1016/j.msea.2007.01.136
卷: 457, 期:1-2, 页:254-260
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]: Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]: INSECT WINGS ; MECHANICAL-PROPERTIES ; FLEXURAL STIFFNESS ; NANOINDENTATION ; SUBSTRATE ; COATINGS
英文摘要:

Detailed investigations on the microstructure and the mechanical properties of the wing membrane of the dragonfly were carried out. It was found that in the direction of the thickness the membrane was divided into three layers rather than as traditionally considered as a single entity, and on the surfaces the membrane displayed a random distribution rough microstructure that was composed of numerous nanometer scale columns coated by the cuticle wax secreted. The characteristics of the surfaces were accurately measured and a statistical radial distribution function of the columns was presented to describe the structural properties of the surfaces. Based on the surface microstructure, the mechanical properties of the membranes taken separately from the wings of living and dead dragonflies were investigated by the nanoindentation technique. The Young′s moduli obtained here are approximately two times greater than the previous result, and the reasons that yield the difference are discussed. (C) 2007 Elsevier B.V. All rights reserved.

语种: 英语
WOS记录号: WOS:000246216900038
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/67462
Appears in Collections:北京大学药学院_化学生物学系_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China
2.Peking Univ, Hlth Sci Ctr, Sch Pharmaceut Sci, Dept Biol Chem, Beijing 100083, Peoples R China

Recommended Citation:
Song, F.,Xiao, K. W.,Bai, K.,et al. Microstructure and nanomechanical properties of the wing membrane of dragonfly[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2007,457(1-2):254-260.
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