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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.39 No.5
- 발행연도
- 2021.1
- 수록면
- 615 - 630 (16page)
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초록· 키워드
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The main purpose of the present work was to study the dynamic instability of a three-layered, thick composite sandwich beam with the functionally graded (FG) flexible core subjected to an axial compressive follower force. Flutter instability of a sandwich cantilever beam was analyzed using the high-order theory of sandwich beams, for the first time. The governing equations in general for sandwich beams with an FG core were extracted and could be used for all types of sandwich beams with any types of face sheets and cores. A polynomial function is considered for the vertical distribution of the displacement field in the core layer along the thickness, based on the results of the first Frosting’s higher order model. The governing partial differential equations and the equations of boundary conditions of the dynamic system are derived using Hamilton's principle. By applying the boundary conditions and numerical solution methods of squares quadrature, the beam flutter phenomenon is studied. In addition, the effects of different geometrical and material parameters on the flutter threshold were investigated. The results showed that the responses of the dynamic instability of the system were influenced by the follower force, the coefficients of FGs and the geometrical parameters like the core thickness. Comparison of the present results with the published results in the literature for the special case confirmed the accuracy of the proposed theory. The results showed that the follower force of the flutter phenomenon threshold for long beams tends to the corresponding results in the Timoshenko beam.
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참고문헌 (80)
참고문헌 신청
H. Alidoost / 2017 / Instability of a delaminated composite beam subjected to a concentrated follower force / Thin-Walled Structures 120:191~202
Hashem S. Alkhaldi / 2014 / Closed-form solution of large deflection of a spring-hinged beam subjected to non-conservative force and tip end moment / European Journal of Mechanics - A/Solids 47:271~279
Gholamreza Asgari / 2019 / Dynamic instability and free vibration behavior of three-layered soft-cored sandwich beams on nonlinear elastic foundations / Structural Engineering and Mechanics, An Int＇l Journal 72(4):525~540
Max Beck / 1952 / Die Knicklast des einseitig eingespannten, tangential gedrückten Stabes / ZAMP Zeitschrift für angewandte Mathematik und Physik 3(3):225~228
Kamran Behdinan / 2020 / Graphene and CNT impact on heat transfer response of nanocomposite cylinders / Nanotechnology Reviews 9(1):41~52
Hashem S. Alkhaldi / 2014 / Closed-form solution of large deflection of a spring-hinged beam subjected to non-conservative force and tip end moment / European Journal of Mechanics - A/Solids 47:271~279
Gholamreza Asgari / 2019 / Dynamic instability and free vibration behavior of three-layered soft-cored sandwich beams on nonlinear elastic foundations / Structural Engineering and Mechanics, An Int＇l Journal 72(4):525~540
Max Beck / 1952 / Die Knicklast des einseitig eingespannten, tangential gedrückten Stabes / ZAMP Zeitschrift für angewandte Mathematik und Physik 3(3):225~228
Kamran Behdinan / 2020 / Graphene and CNT impact on heat transfer response of nanocomposite cylinders / Nanotechnology Reviews 9(1):41~52
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