The roles of crosslinks in the buckling behaviors and load transferring mechanisms of double-walled nanotubes under compression
The roles of crosslinks in the buckling behaviors and load transferring mechanisms of double-walled nanotubes under compression
复制标题
交联在双壁纳米管压缩屈曲行为和载荷传递机制中的作用
DOI：
10.1016/j.commatsci.2011.12.003
复制
发表时间：
2012-04
影响因子：
3.3
通讯作者：
Ding, Li
中科院分区：
文献类型：
--
作者：
Peng, Bei;Li, Yong;Liu, Shen;Guo, Zaoyang;Ding, Li
通过分子动力学模拟研究了双壁纳米管的屈曲行为以及壳层间的载荷传递机制。当发生屈曲时，交联（有缺陷的）DWNT的应变能经历适度的过渡，表明在一个壳中聚集的能量通过壳间交联被另一个壳共享。它被证实，施加到外壳的压缩应力可以有效地转移到内壳通过壳之间的共价键，从而在一个均匀的负载分布。壳层间交联的存在导致可持续载荷的急剧降低和杨氏模量的适度降低。计算研究表明，交联可以改善碳纳米管基纳米复合材料和纳米机电系统的加载条件，降低应变能。
The buckling behaviors as well as the load transfer mechanisms between the shells of double-walled nanotubes (DWNTs) are investigated through a series of molecular dynamics simulations. When buckling occurs, the strain energy of cross-linked (defective) DWNTs undergoes a modest transition indicating that energy gathered in one shell is shared by the other through the inter-shell crosslinks. It is confirmed that the compressive stress applied to the outer shell can be efficiently transferred to the inner shell through the covalent bonds between shells resulting in a uniform load distribution. The existence of inter-shell crosslinks leads to dramatic decreases of the sustainable loads and modest decreases of the Young’s modulus. The computational studies imply that the crosslinks can improve the loading conditions and reduce strain energy in carbon nanotubes based nanocomposites and nanoelectromechanical systems.
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影响因子：
10.9
作者：
Yingyan Zhang;C. Wang;Yuan Cheng;Y. Xiang
通讯作者：
Yingyan Zhang;C. Wang;Yuan Cheng;Y. Xiang
影响因子：
3.2
作者：
Feliciano, Jeremy;Tang, Chun;Chen, Changfeng
通讯作者：
Chen, Changfeng
影响因子：
41.2
作者：
R. Telling;C. Ewels;A. A. El-Barbary-A.;M. Heggie
通讯作者：
R. Telling;C. Ewels;A. A. El-Barbary-A.;M. Heggie
DOI：
--
发表时间：
2009
期刊：
--
影响因子：
--
作者：
A. Stukowski
通讯作者：
A. Stukowski
影响因子：
3.3
作者：
C. Wong
通讯作者：
C. Wong