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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.36 No.1
- 발행연도
- 2020.1
- 수록면
- 47 - 62 (16page)
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초록· 키워드
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In this study, free vibration behavior of trapezoidal sandwich plates with porous core and two graphene platelets (GPLs) reinforced nanocomposite outer layers are presented. The distribution of pores and GPLs are supposed to be functionally graded (FG) along the thickness of core and nanocomposite layers, respectively. The effective Young’s modulus of the GPL-reinforced (GPLR) nanocomposite layers is determined using the modified Halpin-Tsai micromechanics model, while the Poisson’s ratio and density are computed by the rule of mixtures. The FSDT plate theory is utilized to establish governing partial differential equations and boundary conditions (B.C.s) for trapezoidal plate. The governing equations together with related B.C.s are discretized using a mapping- generalized differential quadrature (GDQ) method in the spatial domain. Then natural frequencies of the trapezoidal sandwich plates are obtained by GDQ method. Validity of current study is evaluated by comparing its numerical results with those available in the literature. A special attention is drawn to the role of GPLs weight fraction, GPLs patterns of two faces through the thickness, porosity coefficient and distribution of porosity on natural frequencies characteristics. New results show the importance of this permeates on vibrational characteristics of porous/GPLR nanocomposite plates. Finally, the influences of B.C.s and dimension as well as the plate geometry such as face to core thickness ratio on the vibration behaviors of the trapezoidal plates are discussed.
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참고문헌 (70)
참고문헌 신청
J. C. Halpin Affdl / 1976 / The Halpin-Tsai equations: A review / Polymer Engineering and Science 16(5):344~352
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
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
Abdelouahed Tounsi / 2016 / Thermal post-buckling behavior of imperfect temperature-dependent sandwich FGM plates resting on Pasternak elastic foundation / Steel and Composite Structures, An International Journal 22(1):91~112
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
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
Abdelouahed Tounsi / 2016 / Thermal post-buckling behavior of imperfect temperature-dependent sandwich FGM plates resting on Pasternak elastic foundation / Steel and Composite Structures, An International Journal 22(1):91~112
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