Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function
Functionally graded square and rectangular plates of different thicknesses placed on the elastic foundation modeled according to the Winkler-Pasternak theory have been studied. The thermal and mechanical characteristics, apart from Poisson’s ratio, are considered to continuously differ through the t...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-06-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/12/4190 |
| _version_ | 1797564917878882304 |
|---|---|
| author | Aleksandar Radaković Dragan Čukanović Gordana Bogdanović Milan Blagojević Blaža Stojanović Danilo Dragović Nazim Manić |
| author_facet | Aleksandar Radaković Dragan Čukanović Gordana Bogdanović Milan Blagojević Blaža Stojanović Danilo Dragović Nazim Manić |
| author_sort | Aleksandar Radaković |
| collection | DOAJ |
| description | Functionally graded square and rectangular plates of different thicknesses placed on the elastic foundation modeled according to the Winkler-Pasternak theory have been studied. The thermal and mechanical characteristics, apart from Poisson’s ratio, are considered to continuously differ through the thickness of the studied material as stated in a power-law distribution. A mathematical model of functionally graded plate which include interaction with elastic foundation is defined. The equilibrium and stability equations are derived using high order shear deformation theory that comprises various kinds of shape function and the von Karman nonlinearity. A new analytically integrable shape function has been introduced. Hamilton’s principle has been applied with the purpose of acquiring the equations of motion. An analytical method for identifying both natural frequencies and critical buckling temperature for cases of linear and nonlinear temperature change through the plate thickness has been established. In order to verify the derived theoretical results on numerical examples, an original program code has been implemented within software MATLAB. Critical buckling temperature and natural frequencies findings are shown below. Previous scientific research and papers confirms that presented both the theoretical formulation and the numerical results are accurate. The comparison has been made between newly established findings based on introduced shape function and the old findings that include 13 different shape functions available in previously published articles. The final part of the research provides analysis and conclusions related to the impact of the power-law index, foundation stiffness, and temperature gradient on critical buckling temperature and natural frequencies of the functionally graded plates. |
| first_indexed | 2024-03-10T19:04:39Z |
| format | Article |
| id | doaj.art-e886c5b8ec014f4eaf512029e7c42711 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:04:39Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e886c5b8ec014f4eaf512029e7c427112023-11-20T04:15:10ZengMDPI AGApplied Sciences2076-34172020-06-011012419010.3390/app10124190Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape FunctionAleksandar Radaković0Dragan Čukanović1Gordana Bogdanović2Milan Blagojević3Blaža Stojanović4Danilo Dragović5Nazim Manić6Department of Technical Sciences, State University of Novi Pazar, 36300 Novi Pazar, SerbiaFaculty of Technical Sciences, University of Priština-Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaFaculty of Engineering, University of Kragujevac, 34000 Kragujevac, SerbiaFaculty of Technical Sciences, University of Priština-Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaFaculty of Engineering, University of Kragujevac, 34000 Kragujevac, SerbiaDepartment of Technical Sciences, State University of Novi Pazar, 36300 Novi Pazar, SerbiaDepartment of Technical Sciences, State University of Novi Pazar, 36300 Novi Pazar, SerbiaFunctionally graded square and rectangular plates of different thicknesses placed on the elastic foundation modeled according to the Winkler-Pasternak theory have been studied. The thermal and mechanical characteristics, apart from Poisson’s ratio, are considered to continuously differ through the thickness of the studied material as stated in a power-law distribution. A mathematical model of functionally graded plate which include interaction with elastic foundation is defined. The equilibrium and stability equations are derived using high order shear deformation theory that comprises various kinds of shape function and the von Karman nonlinearity. A new analytically integrable shape function has been introduced. Hamilton’s principle has been applied with the purpose of acquiring the equations of motion. An analytical method for identifying both natural frequencies and critical buckling temperature for cases of linear and nonlinear temperature change through the plate thickness has been established. In order to verify the derived theoretical results on numerical examples, an original program code has been implemented within software MATLAB. Critical buckling temperature and natural frequencies findings are shown below. Previous scientific research and papers confirms that presented both the theoretical formulation and the numerical results are accurate. The comparison has been made between newly established findings based on introduced shape function and the old findings that include 13 different shape functions available in previously published articles. The final part of the research provides analysis and conclusions related to the impact of the power-law index, foundation stiffness, and temperature gradient on critical buckling temperature and natural frequencies of the functionally graded plates.https://www.mdpi.com/2076-3417/10/12/4190functionally graded platevon Karman nonlinear theoryhigh order shear deformation theorynew shape functionthermal bucklingfree vibration |
| spellingShingle | Aleksandar Radaković Dragan Čukanović Gordana Bogdanović Milan Blagojević Blaža Stojanović Danilo Dragović Nazim Manić Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function Applied Sciences functionally graded plate von Karman nonlinear theory high order shear deformation theory new shape function thermal buckling free vibration |
| title | Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function |
| title_full | Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function |
| title_fullStr | Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function |
| title_full_unstemmed | Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function |
| title_short | Thermal Buckling and Free Vibration Analysis of Functionally Graded Plate Resting on an Elastic Foundation According to High Order Shear Deformation Theory Based on New Shape Function |
| title_sort | thermal buckling and free vibration analysis of functionally graded plate resting on an elastic foundation according to high order shear deformation theory based on new shape function |
| topic | functionally graded plate von Karman nonlinear theory high order shear deformation theory new shape function thermal buckling free vibration |
| url | https://www.mdpi.com/2076-3417/10/12/4190 |
| work_keys_str_mv | AT aleksandarradakovic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT dragancukanovic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT gordanabogdanovic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT milanblagojevic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT blazastojanovic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT danilodragovic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction AT nazimmanic thermalbucklingandfreevibrationanalysisoffunctionallygradedplaterestingonanelasticfoundationaccordingtohighordersheardeformationtheorybasedonnewshapefunction |