Biomimetic Nanostructured Interfaces for Hierarchical Composites
Biomimetic Nanostructured Interfaces for Hierarchical Composites
复制标题
分层复合材料的仿生纳米结构界面
DOI：
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
H. Sodano
中科院分区：
文献类型：
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作者：
M. Malakooti;Zhi Zhou;J. Spears;Timothy J. Shankwitz;H. Sodano
在纤维增强聚合物复合材料的增强相和基体相之间创建分层界面已成为开发仿生结构复合材料的有效策略。所得材料显示出优异的特性，例如同时具有高刚度和高韧性，这在均质材料中是罕见的。尽管纳米结构界面的功效已经确定，但与其性能相关的机制尚未被探索。在这里，纳米线相间的应变传递被可视化，以了解物理界面修改的工作原理。这是通过使用由纳米线组成的功能梯度压电界面来实现的，因为它们的压电特性可用于控制界面一侧的应变。事实证明，纳米线“晶须”导致应变从增强相均匀转移到基体相，从而消除了相之间的应力集中。
Creating a hierarchical interface between the reinforcement and matrix phases of fiber reinforced polymer composites has become an effective strategy toward development of bioinspired structural composites. The resulting materials display exceptional characteristics such as having both high stiffness and high toughness simultaneously, which is rare in homogeneous materials. Although the efficacy of nanostructured interfaces has been established, the mechanisms associated with their performance have not been explored yet. Here, strain transfer across a nanowire interphase is visualized in order to understand the working principles of physical interface modifications. This is accomplished by using a functionally graded piezoelectric interface composed of nanowires, as their piezoelectric properties can be utilized to control the strain on one side of the interface. It is demonstrated that the nanowire “whiskers” cause an even strain transfer from the reinforcement phase into the matrix phase, eliminating stress concentration between the phases.
PLGA纳米纤维支架的机制，具有矿物质中的仿生梯度，用于肌腱对骨修复。
DOI：
10.1016/j.jmbbm.2014.08.002
发表时间：
2014-12
影响因子：
3.9
作者：
Lipner, J.;Liu, W.;Liu, Y.;Boyle, J.;Genin, G. M.;Xia, Y.;Thomopoulos, S.
通讯作者：
Thomopoulos, S.
影响因子：
3
作者：
Weiner, S;Traub, W;Wagner, HD
通讯作者：
Wagner, HD
DOI：
10.1016/j.mechmat.2011.08.005
发表时间：
2012-01
期刊：
Mechanics of materials : an international journal
影响因子：
--
作者：
Liu YX;Thomopoulos S;Birman V;Li JS;Genin GM
通讯作者：
Genin GM