Effective medium theory of semiflexible filamentous networks
Effective medium theory of semiflexible filamentous networks
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DOI：
10.1103/physrevlett.99.038101
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发表时间：
2007-07-20
影响因子：
8.6
通讯作者：
Levine, Alex J.
中科院分区：
文献类型：
--
作者：
Das, Moumita;MacKintosh, F. C.;Levine, Alex J.
我们开发了一种有效的介质方法来研究无序的半柔性聚合物网络的力学，并研究了这种网络对均匀和非均匀应变的响应。我们确定不同的弹性制度，其中无论是长丝弯曲或拉伸的宏观模量的贡献消失。我们还表明，我们的有效介质理论预测仿射和非仿射应变之间的交叉，与以前的数值研究和标度理论相一致。
We develop an effective medium approach to the mechanics of disordered, semiflexible polymer networks and study the response of such networks to uniform and nonuniform strain. We identify distinct elastic regimes in which the contributions of either filament bending or stretching to the macroscopic modulus vanish. We also show that our effective medium theory predicts a crossover between affine and nonaffine strain, consistent with both prior numerical studies and scaling theory.