EXTREME COSSERAT ELASTIC CUBE STRUCTURE WITH LARGE MAGNITUDE OF NEGATIVE POISSON'S RATIO
EXTREME COSSERAT ELASTIC CUBE STRUCTURE WITH LARGE MAGNITUDE OF NEGATIVE POISSON'S RATIO
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DOI：
10.2140/jomms.2018.13.93
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发表时间：
2018-01-01
影响因子：
0.9
通讯作者：
Lakes, Roderic S.
中科院分区：
文献类型：
--
作者：
Andrade, Carlos;Ha, Chan Soo;Lakes, Roderic S.
提出了一种由旋转立方体组成的结构。它具有零杨氏模量和零体积模量。泊松比在所有方向上都有很大的负值，结构在泊松比上表现出各向异性。该结构在拉伸时是柔顺的，但在扭转和弯曲时是刚性的。Cosserat特征长度趋于无穷大。
A structure consisting of pivoting cubes is presented. It has zero Young's modulus and zero bulk modulus. Poisson's ratio has large negative values in all directions; the structure exhibits anisotropy in Poisson's ratio. The structure is compliant in tension but rigid in torsion and bending. The Cosserat characteristic length tends to infinity.