Numerical exploration of the defect's effect on mechanical properties of nanowires under torsion

H. F. Zhan, Y. T. Gu, C. Yan, P. K. D. V. Yarlagadda

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

9 Citations (Scopus)

Abstract

![CDATA[Molecular dynamics (MD) simulations have been carried out to investigate the defect's effect on the mechanical properties of single-crystal copper nanowire with different surface defects, under torsion deformation. The torsional rigidity is found insensitive to the surface defects and the critical angle appears an obvious decrease due to the surface defects, the largest decrease is found for the nanowire with surface horizon defect. The deformation mechanism appears different degrees of influence due to surface defects. The surface defects play a role of dislocation sources. Comparing with single intrinsic stacking faults formation for the perfect nanowire, much affluent deformation processes have been activated because of surface defects, for instance, we find the twins formation for the nanowire with a surface 45 degree defect.]]
Original languageEnglish
Title of host publicationAdvanced Materials and Structures, Part 1: Selected, Peer Reviewed Papers from the 2011 International Conference on Materials and Products Manufacturing Technology, (ICMPMT 2011), 28-30 October, 2011, Chengdu, China
PublisherTrans Tech Publications
Pages498-501
Number of pages4
ISBN (Print)9783037852460
DOIs
Publication statusPublished - 2011
EventInternational Conference on Materials and Products Manufacturing Technology -
Duration: 28 Oct 2011 → …

Publication series

Name
ISSN (Print)1022-6680

Conference

ConferenceInternational Conference on Materials and Products Manufacturing Technology
Period28/10/11 → …

Keywords

  • copper
  • defects
  • deformations (mechanics)
  • molecular dynamics
  • nanowires
  • torsion

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