Free vibration of pre-tensioned nanobeams based on nonlocal stress theory |
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| Authors: | C W Lim Cheng Li and Ji-lin Yu |
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| Institution: | [1]Department of Building and Construction, City University of Hong Kong, Kowloon, Hong Kong SAR, China [2]Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The transverse free vibration of nanobeams subjected to an initial axial tension based on nonlocal stress theory is presented. It considers the effects of nonlocal stress field on the natural frequencies and vibration modes. The effects of a small scale parameter at molecular level unavailable in classical macro-beams are investigated for three different types of boundary conditions:simple supports,clamped supports and elastically-constrained supports. Analytical solutions for transverse deforma-tion and vi... |
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| Keywords: | Nanobeam Natural frequency Nonlocal stress Pre-tensioned Vibration mode |
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