Soft elasticity in smectic elastomers.

Soft elasticity in smectic elastomers.
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DOI:
10.1103/physreve.72.011703
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发表时间:
2005-07
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
通讯作者:
J. Adams;M. Warner
J. Adams;M. Warner
中科院分区:
其他
文献类型:
--
作者:
J. Adams;M. Warner

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我们研究了近晶弹性体的软弹性模式,即在不消耗能量的情况下改变形状。我们使用微观模型来模拟它们的非线性弹性,类似于向列弹性体所使用的模型。我们考虑近晶弹性体的两个不同相;双轴近晶A相用于简单说明,近晶C相具有重要的实际意义。我们证明,只有一个非平凡的导向器轨迹会产生软变形。我们给出了这种软弹性模式的几何解释并给出了一个明确的例子。
We investigate the soft elastic modes of smectic elastomers, that is shape change without energy cost. We use a microscopic model for their nonlinear elasticity, similar to those used for nematic elastomers. We consider two different phases of smectic elastomer; the biaxial smectic A for a simple illustration, and smectic C phases which are of great practical significance. We show that only one nontrivial trajectory of the director gives soft deformations. We give a geometrical interpretation of this soft elastic mode and give an explicit example.