On the tensile behavior of hetero-junction carbon nanotubes

Title: On the tensile behavior of hetero-junction carbon nanotubes
Creator: Yengejeh, Sadegh Imani; Zadeh, Mojtaba Akbar; Öechsner, Andreas
Relation: Composites Part B: Engineering Vol. 75, p. 274-280
Publisher Link: http://dx.doi.org/10.1016/j.compositesb.2015.02.001
Publisher: Elsevier
Resource Type: journal article
Date: 2015
Description: Several straight hetero-junctions carbon nanotubes (CNTs) are constructed and their tensile behavior are investigated. It is pointed that the Young's modulus of hetero-junctions is lower than the values of their fundamental homogeneous CNTs due to the existence of pentagon–heptagon pair defects. In addition, it is revealed that the Young's modulus of homogeneous zigzag CNTs increases by increasing the chiral number of these nano-structures. Finally, it is concluded that as the connecting length of the hetero-junctions increases the Young's modulus of these particular CNTs decreases. Therefore, the tensile strength of hetero-junctions depends on the presence of pentagon–heptagon pair defects.
Subject: nano-structures; mechanical properties; Finite Element Analysis (FEA)
Identifier: http://hdl.handle.net/1959.13/1336235
Identifier: uon:27578
Identifier: ISSN:1359-8368
Language: eng
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