Internal Stresses, Normal Modes, and Nonaffinity in Three-Dimensional Biopolymer Networks
Internal Stresses, Normal Modes, and Nonaffinity in Three-Dimensional Biopolymer Networks
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DOI：
10.1103/physrevlett.106.088301
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发表时间：
2011-02-25
影响因子：
8.6
通讯作者：
Lubensky, T. C.
中科院分区：
文献类型：
--
作者：
Huisman, E. M.;Lubensky, T. C.
我们数值研究了半柔性生物聚合物网络的变形和模式作为交联配位数z和弯曲和拉伸能量强度的函数。在平衡状态下，细丝承受内应力，且网络在麦克斯韦等静力点以下表现出剪切刚度。与二维网络相比，我们的网络在所有刚性状态下都表现出非仿射弯曲主导响应，包括那些接近z = 4最大值时弯曲能量小于拉伸能量的响应。
We numerically investigate deformations and modes of networks of semiflexible biopolymers as a function of crosslink coordination number z and strength of bending and stretching energies. In equilibrium filaments are under internal stress, and the networks exhibit shear rigidity below the Maxwell isostatic point. In contrast to two-dimensional networks, ours exhibit nonaffine bending-dominated response in all rigid states, including those near the maximum of z = 4 when bending energies are less than stretching ones.