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Geomechanics and Engineering Volume 17, Number 2, February10 2019 , pages 175-180 DOI: https://doi.org/10.12989/gae.2019.17.2.175 |
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Analyzing post-buckling behavior of continuously graded FG nanobeams with geometrical imperfections |
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Ridha A. Ahmed, Raad M. Fenjan and Nadhim M. Faleh
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| Abstract | ||
| This research is concerned with post-buckling investigation of nano-scaled beams constructed from porous functionally graded (FG) materials taking into account geometrical imperfection shape. Hence, two types of nanobeams which are perfect and imperfect have been studied. Porous FG materials are classified based on even or uneven porosity distributions. A higher order nonlinear refined beam theory is used in the present research. Both perfect and imperfect nanobeams are formulated based on this refined theory. A detailed study is provided to understand the effects of geometric imperfection, pore distribution, material distribution and small scale effects on buckling of FG nanobeams. | ||
| Key Words | ||
| post-buckling; refined beam theory; porous nanobeam; nonlocal elasticity; porosities | ||
| Address | ||
| Ridha A. Ahmed, Raad M. Fenjan and Nadhim M. Faleh: Al-Mustansiriyah University, Engineering College P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq | ||