STRAIN RATE AND TEMPERATURE EFFECTS ON COMPRESSIVE BUCKLING OF CARBON NANOTUBES AND INTRAMOLECULAR JUNCTIONS

摘要：

Intramolecular carbon nanotube junctions under compression tend to buckle or exhibit structural instability,which will cause structural or electronics failure.Thus it is important to study the mechanical behavior of intramolecular junctions under compression.In this study,molecular dynamical simulations are carried out to study the compressive response of intramolecular junctions,as well as that of carbon nanotubes for comparison.The simulation results indicate that,within low loading rate,the strain rate effect can be ignored.If the strain rate increases further,the critical strain also increases.Simulation results reveal that local deformation may be introduced at high environmental temperature.It is also found that with increasing tube length the deformation modes transfer from sheli buckling to column buckling for both junctions and carbon nanotubes.

关键词： strain rate temperature intramolecular carbon nanotube junction buckling critical compressive strain

作者: M.Li Z.Kang

作者单位: State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 71-74

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）