The stress-strain relationship of liquid marbles under compression
The stress-strain relationship of liquid marbles under compression
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DOI：
10.1063/1.5079438
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发表时间：
2019-01
影响因子：
4
通讯作者：
H. Polwaththe-Gallage;C. H. Ooi;Jing Jin;E. Sauret;N. Nguyen;Zirui Li;Yuantong T. Gu
中科院分区：
文献类型：
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作者：
H. Polwaththe-Gallage;C. H. Ooi;Jing Jin;E. Sauret;N. Nguyen;Zirui Li;Yuantong T. Gu
液体弹珠可以使用弹性固体模型来表征，该模型由被软固体膜包围的液体组成。液体弹珠的弹性决定了在给定外力下的压缩量。这是一个重要的性质，因为液体大理石的弹性决定了它们在给定应力下的形态。我们证明了液态大理石的应力-应变关系可以用σ_（？）Bo=0.6[1/（1-ehro）2 - 1]来描述，其中Bo是邦德数，σ* 是归一化应力，ehr 0是相对于液态大理石的等效半径测量的应变。这种应力-应变关系可以为开发具有坚固液体大理石的微流体装置铺平道路。
Liquid marbles can be characterized using elastic solid models consisting of a liquid surrounded by a soft solid membrane. The elastic properties of liquid marbles determine the amount of compression under a given external force. This is an important property as the elasticity of liquid marbles determines their morphology under a given stress. We show that the stress-strain relationship of liquid marbles can be described by σ∗Bo=0.6[1/(1−ehro)2−1], where Bo is the Bond number, σ* is the normalised stress, and ehr0 is the strain measured with respect to the equivalent radius of the liquid marble. This stress-strain relationship could pave the way for the development of microfluidic devices with robust liquid marbles.