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发布时间：2019-03-11

论文类型：期刊论文

发表时间：2011-04-01

发表刊物：Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics

收录刊物：Scopus、ISTIC、PKU、EI

卷号：28

期号：z1

页面范围：113-116

ISSN号：10074708

摘要：Carbon intramolecular junctions (IMJs) are formed by two arbitrary carbon nanotubes (CNTs). They can act be used in nano-scale electronics circuits and devices. This paper investigates buckling behaviors of IMJs undergoing large compressive deformation by using the molecular dynamics (MD) simulations. It is revealed from the MD results that the critical compressive strain is not affected by the strain rate of relatively low range, but it is sensitive to the strain rate under high speed compression. This finding provides a useful guidance for choosing a appropriate loading rate in the MD simulations. Finite element analysis is also employed to investigate the buckling behavior of IMJs under axial compression. The results obtained by the MD simulations and the finite element analyses agree well. It is thus confirmed the finite element analysis can be used to perform compressive buckling analysis of IMJs at a relatively low cost.