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arXiv 2102.09995cond-mat.soft
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褶皱薄板的展开

Unfolding of Crumpled Thin Sheets

Francisco C B Leal, Marcelo A F Gomes

摘要:

褶皱薄片是一种复杂的分形结构,其物理性质受到脊的层次结构的影响。在这封信中,我们报告的实验,测量的应力-应变关系,并显示的共存相在拉伸的褶皱表面。拉伸应力表现出从线性虎克制度的变化,以$0.65 \pm 0.03$,这是确定与赫斯特指数的皱纸指数的次线性标度。应力波动的研究,力峰值的统计分布进行了分析,它是如何被引导的长距离相互作用的起皱的片材的解包。

英文摘要:

Crumpled thin sheets are complex fractal structures whose physical properties are influenced by a hierarchy of ridges. In this Letter, we report experiments that measure the stress-strain relation and show the coexistence of phases in the stretching of crumpled surfaces. The pull stress showed a change from a linear Hookean regime to a sublinear scaling with an exponent of $0.65 \pm 0.03$, which is identified with the Hurst exponent of the crumpled sheets. The stress fluctuations are studied, the statistical distribution of force peaks is analyzed and it is shown how the unpacking of crumpled sheets is guided by long distance interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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