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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.40 No.1
- 발행연도
- 2021.1
- 수록면
- 101 - 119 (19page)
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초록· 키워드
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In this study, a nonlocal Layerwise theory is presented for free vibration analysis of nanobeams resting on an elastic foundation. Eringen’s nonlocal elasticity theory is used to consider the small-scale effect on behavior of nanobeam. The governing equations are obtained by employing Hamilton’s principle and Layerwise theory of beams and Eringen’s nonlocal constitutive equation. The presented theory takes into account the in-plane and transverse normal and shear strain in the modeling of the nanobeam and can predict more accurate results. The governing equations of the beam are solved by Navier's method for Simple-Simple boundary conditions and semi-analytical methods to obtain the natural frequency for various boundary conditions including Clamped-Simple (C-S), Clamped-Clamped (C-C) and Free-Free (F-F) boundary conditions. Predictions of the present theory are compared with benchmark results in the literature. Effects of nonlocal parameter, Pasternak shear coefficient, Winkler spring coefficient, boundary conditions, and the aspect ratio on the free vibration of nanobeams are studied. The flexural mode and thickness mode natural frequencies of the nanobeam are predicted. It is shown that the predictions of present method are more accurate than the equivalent single layer theories. The theoretical developments and formulation presented herein should also be served to analyze the mechanical behavior of various nanostructures with various loading and boundary conditions.
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참고문헌 (109)
참고문헌 신청
M. Afshin / 2015 / Interlaminar stresses of laminated composite beams resting on elastic foundation subjected to transverse loading / Computational Materials Science 96:439~447
Isa Ahmadi / 2016 / Three-dimensional stresses analysis in rotating thin laminated composite cylindrical shells / Steel and Composite Structures, An International Journal 22(5):1193~1214
Isa Ahmadi / 2016 / Edge stresses analysis in thick composite panels subjected to axial loading using layerwise formulation / Structural Engineering and Mechanics, An Int＇l Journal 57(4):733~762
Isa Ahmadi / 2018 / Three-dimensional and free-edge hygrothermal stresses in general long sandwich plates / Structural Engineering and Mechanics, An Int＇l Journal 65(3):275~290
Isa Ahmadi / 2019 / Free edge stress prediction in thick laminated cylindrical shell panel subjected to bending moment / Applied Mathematical Modelling 65:507~525
Isa Ahmadi / 2016 / Three-dimensional stresses analysis in rotating thin laminated composite cylindrical shells / Steel and Composite Structures, An International Journal 22(5):1193~1214
Isa Ahmadi / 2016 / Edge stresses analysis in thick composite panels subjected to axial loading using layerwise formulation / Structural Engineering and Mechanics, An Int＇l Journal 57(4):733~762
Isa Ahmadi / 2018 / Three-dimensional and free-edge hygrothermal stresses in general long sandwich plates / Structural Engineering and Mechanics, An Int＇l Journal 65(3):275~290
Isa Ahmadi / 2019 / Free edge stress prediction in thick laminated cylindrical shell panel subjected to bending moment / Applied Mathematical Modelling 65:507~525
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