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Bending and buckling of functionally graded Poisson's ratio nanoscale beam based on nonlocal theory | ||
| Iranian Journal of Science | ||
| مقاله 13، دوره 39، شماره 4، اسفند 2015، صفحه 559-565 اصل مقاله (655.3 K) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijsts.2015.3417 | ||
| نویسندگان | ||
| Guan-sheng Yin1؛ Qing-tian Deng* 1؛ Zhi-chun Yang2 | ||
| 1School of Science, Chang’an University, Xi’an, China, 710064 | ||
| 2School of Aeronautics, Northwestern Polytechnical University, Xi’an, China, 710072 | ||
| چکیده | ||
| Functionally graded Poisson’s ratio structures have been developed for critical protection. In this paper, the static bending and buckling of FGPR nanoscale beam are studied based on the nonlocal Timoshenko beam model, in which both Young’s modulus and Poisson’s ratio are assumed to vary continuously in the thickness direction. By utilizing total potential energy principle, equilibrium equations are derived. In the numerical results, beam models with different material properties are introduced, and the effects of the nonlocal parameter, aspect ratio and the Poisson’s ratio on the deflection and buckling are discussed. | ||
| کلیدواژهها | ||
| Functionally graded؛ Poisson’s ratio؛ nanoscale beam؛ nonlocal theory | ||
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