Torsion of an eccentrically two-phase circular nanobar

Pahlevani, L ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1109/NEMS.2010.5592150
  3. Publisher: 2010
  4. Abstract:
  5. The effect of surface and interface elasticity in analysis of the Saint-Venant torsion problem of an eccentrically two-phase circular nanobar is considered. The problem is formulated in the context of Gurtin's surface elasticity. For a rigorous solution of the proposed problem, conformal mapping together with a Laurent series expansion are employed. At the nanoscales the usual classical theories cease to hold and the corresponding results deteriorate. The numerical results well illustrate that the torsional rigidity of the mentioned nanosized structural elements are significantly affected by the size. Some applications of the given results can be contemplated in the design of micro/nano devices which may be applied as probes of scanning probe microscopes as well as nanowires and nanotubes
  6. Keywords:
  7. Classical theory ; Laurent series expansion ; Micro/nano devices ; Nano scale ; Nano-sized ; Numerical results ; Rigorous solution ; Saint-Venant torsion ; Scanning probe microscope ; Structural elements ; Surface and interfaces ; Surface elasticities ; Torsional rigidity ; Conformal mapping ; Elasticity ; Nanotubes ; Nanowires ; Probes ; Torsional stress ; Phase interfaces
  8. Source: 2010 IEEE 5th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2010, 20 January 2010 through 23 January 2010 ; January , 2010 , Pages 70-73 ; 9781424465439 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/5592150/?reload=true