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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
- 139 - 156 (18page)
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초록· 키워드
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The goal of this study is to fill this apparent gap in the area about investigating free vibration of Functionally Graded Piezoelectric Materials (FGPMs) nanobeams with porosity resting on two-parameter elastic foundations, under voltage load considering Timoshenko beam model and nonlocal theory. The elastic foundation is considered as a Pasternak model with adding a shear layer to the Winkler model. The electromechanical and mechanical properties of the nanobeam (such as elastic, piezoelectric, dielectric coefficients and mass density) are FG in the thickness direction of the beam. Based on Hamilton principle, governing equations of the problem are derived. The Differential Quadrature Method (DQM) for solution of these equations are employed to determine the natural frequencies of the FGPM nanobeams at different Boundary Conditions (B.C.s). The influences of supporting conditions, the porosity coefficient and patterns including even and uneven, nonlocal parameter, Winkler foundation modulus, shear elastic foundation modulus, external voltage and power-law index on the electromechanical vibration characteristics of the FGPM nanobeams are discussed in details. It is found that the FG index and nonlocal parameter will reduce the natural frequencies of the FG nanobeam, while the Winkler and Pasternak moduli of the foundation show an opposite tendency.
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참고문헌 (53)
참고문헌 신청
Afrookhteh, S. S. / 2016 / An experimental investigation of the effects of weight fractions of reinforcement and timing of hardener addition on the strain sensitivity of carbon nanotube/polymer composites / U. P. B. Sci. Bull., Series B 78(4):121~130
S. Simaafrookhteh / 2018 / Microstructure Reconstruction and Characterization of the Porous GDLs for PEMFC Based on Fibers Orientation Distribution / Fuel Cells 18(2):160~172
S.M. Ahmadi / 2014 / Mechanical behavior of regular open-cell porous biomaterials made of diamond lattice unit cells / Journal of the Mechanical Behavior of Biomedical Materials 34:106~115
Mohammed Sid Ahmed Houari / 2018 / Buckling analysis of new quasi-3D FG nanobeams based on nonlocal strain gradient elasticity theory and variable length scale parameter / Steel and Composite Structures, An International Journal 28(1):13~24
Mohammad Arefi / 2015 / Elastic solution of a curved beam made of functionally graded materials with different cross sections / Steel and Composite Structures, An International Journal 18(3):659~672
S. Simaafrookhteh / 2018 / Microstructure Reconstruction and Characterization of the Porous GDLs for PEMFC Based on Fibers Orientation Distribution / Fuel Cells 18(2):160~172
S.M. Ahmadi / 2014 / Mechanical behavior of regular open-cell porous biomaterials made of diamond lattice unit cells / Journal of the Mechanical Behavior of Biomedical Materials 34:106~115
Mohammed Sid Ahmed Houari / 2018 / Buckling analysis of new quasi-3D FG nanobeams based on nonlocal strain gradient elasticity theory and variable length scale parameter / Steel and Composite Structures, An International Journal 28(1):13~24
Mohammad Arefi / 2015 / Elastic solution of a curved beam made of functionally graded materials with different cross sections / Steel and Composite Structures, An International Journal 18(3):659~672
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