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Your search keyword '"Duan, W.H."' showing total 27 results
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27 results on '"Duan, W.H."'

16. Exact solution for buckling of columns including self-weight

Author

Duan, W.H. and Wang, C.M.

Subjects
Columns -- Mechanical properties, Numerical analysis -- Methods, Mechanics -- Research, Science and technology
Abstract

In this technical note, analytical solutions for the elastic buckling of heavy columns with various combinations of end conditions are derived, for the first time, in terms of generalized hypergeometric functions. The benchmark solutions may be used to assess the accuracy of approximate formulas and numerical solutions. CE Database subject headings: Columns; Buckling; Numerical models; Axial loads; Weight.

Published
2008

24. Collision of a suddenly released bent carbon nanotube with a circular graphene sheet

Author

Duan, W.H., Wang, C.M., and Tang, W.X.

Subjects
Graphene -- Structure, Graphene -- Electric properties, Molecular dynamics -- Usage, Nanotubes -- Structure, Nanotubes -- Mechanical properties, Physics
Abstract

Molecular dynamics (MD) simulations were utilized to study the mechanical strain energy release of a bent single wall carbon nanotube (CNT) and its mechanical collision with a circular graphene sheet that is fixed at its edges. The results provide insight into the potential application of a CNT and a graphene sheet as a nanoknife and a nanocutting board, respectively, for nanocleavage processes such as sequence-specific DNA cleaving processes.

Published
2010

25. Free vibration of nanorings/arches based on nonlocal elasticity

Author

Wang, C.M. and Duan, W.H.

Subjects
Vibration -- Analysis, Nanotechnology -- Research, Physics
Abstract

The free vibration problem of nanorings/arches is studied and the effects of small length scale, defects and elastic boundary conditions are examined. The defects and the use of elastic boundary conditions have reduced the frequencies and have altered the vibration mode shapes of circular rings/arches.

Published
2008

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