木筏
材料科学
弹性(物理)
弹性模量
复合材料
模数
压缩(物理)
各向异性
屈曲
泊松分布
单层
杨氏模量
泊松比
粒子(生态学)
机械
经典力学
物理
数学
纳米技术
地质学
光学
聚合物
海洋学
统计
共聚物
作者
Dominic Vella,Pascale Aussillous,L. Mahadevan
出处
期刊:EPL
[IOP Publishing]
日期:2004-10-01
卷期号:68 (2): 212-218
被引量:231
标识
DOI:10.1209/epl/i2004-10202-x
摘要
We study the collective behaviour of a close packed monolayer of non-Brownian particles at a fluid-liquid interface. Such a particle raft forms a two-dimensional elastic solid and can support anisotropic stresses and strains, e.g. it buckles in uniaxial compression and cracks in tension. We characterise this solid in terms of a Young's modulus and Poisson ratio derived from simple theoretical considerations and show the validity of these estimates by using an experimental buckling assay to deduce the Young's modulus.
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