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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0093183
论文题名:	Structural Transition from Helices to Hemihelices
作者:	Jia Liu; Jiangshui Huang; Tianxiang Su; Katia Bertoldi; David R. Clarke
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-4-23
卷:	9, 期:4
语种:	英语
英文关键词:	Aspect ratio ; Finite element analysis ; Video recording ; Elastomers ; Buckling ; Deformation ; Phase diagrams ; Perturbation (geology)
英文摘要:	Helices are amongst the most common structures in nature and in some cases, such as tethered plant tendrils, a more complex but related shape, the hemihelix forms. In its simplest form it consists of two helices of opposite chirality joined by a perversion. A recent, simple experiment using elastomer strips reveals that hemihelices with multiple reversals of chirality can also occur, a richness not anticipated by existing analyses. Here, we show through analysis and experiments that the transition from a helical to a hemihelical shape, as well as the number of perversions, depends on the height to width ratio of the strip's cross-section. Our findings provides the basis for the deterministic manufacture of a variety of complex three-dimensional shapes from flat strips.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0093183&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18775
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0093183.PDF（876KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America;School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America;School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America;School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America;Kavli Institute, Harvard University, Cambridge, Massachusetts, United States of America;School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America;Kavli Institute, Harvard University, Cambridge, Massachusetts, United States of America

Recommended Citation:

Jia Liu,Jiangshui Huang,Tianxiang Su,et al. Structural Transition from Helices to Hemihelices[J]. PLOS ONE,2014-01-01,9(4)

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