Dynamic Analysis of Imperfect FGM Circular Cylindrical Shells Reinforced by FGM Stiffener System Using Third Order Shear Deformation Theory in Term of Displacement Components
Autor: | Hoang Thi Thiem, Nguyen Dinh Duc, Dao Van Dung |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
Materials science
Aerospace Engineering Ocean Engineering Functionally graded material 02 engineering and technology Elastic foundation Vibration Displacement (vector) 0203 mechanical engineering Thermal Dynamic analysis Stiffened cylindrical shell General Materials Science Galerkin method lcsh:QC120-168.85 Civil and Structural Engineering business.industry Mechanical Engineering Natural frequency Structural engineering Analytical 021001 nanoscience & nanotechnology Nonlinear system 020303 mechanical engineering & transports Mechanics of Materials Automotive Engineering lcsh:Descriptive and experimental mechanics Imperfect lcsh:Mechanics of engineering. Applied mechanics lcsh:TA349-359 0210 nano-technology business |
Zdroj: | Latin American Journal of Solids and Structures v.14 n.13 2017 Latin American journal of solids and structures Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM Latin American Journal of Solids and Structures, Volume: 14, Issue: 13, Pages: 2534-2570, Published: 2017 Latin American Journal of Solids and Structures, Vol 14, Iss 13, Pp 2534-2570 |
Popis: | This paper presents dynamic analysis of an eccentrically stiffened imperfect circular cylindrical shells made of functionally graded materials (FGM), subjected to axial compressive load and filled inside by elastic foundations in thermal environments by analytical method. Shells are reinforced by FGM stringers and rings taking into account thermal elements. The stability equations in terms of displacement components for stiffened shells are derived by using the third-order shear deformation theory and smeared stiffeners technique.The closed-form expressions for determining the natural frequency, nonlinear frequency-amplitude curve and nonlinear dynamic response are obtained by using Galerkin method and fourth-order Runge-Kutta method. The effects of stiffeners, foundations, imperfection, material and dimensional parameters pre-existent axial compressive and thermal load on dynamic responses of shells are considered. |
Databáze: | OpenAIRE |
Externí odkaz: |