Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation
This study analyzes the free vibration, forced vibration, resonance, and stress wave propagation of orthotropic sandwich plates made of functionally graded materials (FGMs). Dynamic analyses are conducted using a mesh-free method based on first-order shear deformation theory and the shape functions...
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| Format: | Article |
| Language: | English |
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Semnan University
2017-11-01
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| Series: | Mechanics of Advanced Composite Structures |
| Subjects: | |
| Online Access: | https://macs.semnan.ac.ir/article_2624_b408acaab5d0b87c655139a3e15abcd0.pdf |
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| author | Rasool Moradi-dastjerdi Hamed Momeni-Khabisi Ramin Baghbani |
| author_facet | Rasool Moradi-dastjerdi Hamed Momeni-Khabisi Ramin Baghbani |
| author_sort | Rasool Moradi-dastjerdi |
| collection | DOAJ |
| description | This study analyzes the free vibration, forced vibration, resonance, and stress wave propagation of orthotropic sandwich plates made of functionally graded materials (FGMs). Dynamic analyses are conducted using a mesh-free method based on first-order shear deformation theory and the shape functions constructed using moving least squares approximation. The sandwich plates are rested on a Pasternak elastic foundation and subjected to periodic or impact loading and essential boundary conditions, which are imposed through a transfer function method. The sandwich plates are assumed to be composed of a homogeneous orthotropic core and two orthotropic FGM face sheets made of two orthotropic materials. The volume fractions of the materials are varied smoothly along the thickness of the face sheets. The convergence and accuracy of the applied method are demonstrated, after which numerical analyses are conducted to investigate the effects of elastic foundation coefficients, material distributions, geometrical dimensions, time-dependent loading, and boundary conditions on the vibrational and dynamic characteristics of the orthotropic FGM sandwich plates. |
| format | Article |
| id | doaj-art-3badb33e2b314ccdbd9a47fd924735b9 |
| institution | Kabale University |
| issn | 2423-4826 2423-7043 |
| language | English |
| publishDate | 2017-11-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Mechanics of Advanced Composite Structures |
| spelling | doaj-art-3badb33e2b314ccdbd9a47fd924735b92024-12-16T21:02:03ZengSemnan UniversityMechanics of Advanced Composite Structures2423-48262423-70432017-11-014215316810.22075/macs.2017.11043.11072624Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic FoundationRasool Moradi-dastjerdi0Hamed Momeni-Khabisi1Ramin Baghbani2Young Researchers and Elite Club,Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, IranDepartment of Mechanical Engineering, University of Jiroft, Jiroft, IranDepartment of Water Engineering, Isfahan University of Technology, Isfahan, IranThis study analyzes the free vibration, forced vibration, resonance, and stress wave propagation of orthotropic sandwich plates made of functionally graded materials (FGMs). Dynamic analyses are conducted using a mesh-free method based on first-order shear deformation theory and the shape functions constructed using moving least squares approximation. The sandwich plates are rested on a Pasternak elastic foundation and subjected to periodic or impact loading and essential boundary conditions, which are imposed through a transfer function method. The sandwich plates are assumed to be composed of a homogeneous orthotropic core and two orthotropic FGM face sheets made of two orthotropic materials. The volume fractions of the materials are varied smoothly along the thickness of the face sheets. The convergence and accuracy of the applied method are demonstrated, after which numerical analyses are conducted to investigate the effects of elastic foundation coefficients, material distributions, geometrical dimensions, time-dependent loading, and boundary conditions on the vibrational and dynamic characteristics of the orthotropic FGM sandwich plates.https://macs.semnan.ac.ir/article_2624_b408acaab5d0b87c655139a3e15abcd0.pdfwave propagationsandwich platefunctional graded materialmesh-freefirst-order shear deformation theory |
| spellingShingle | Rasool Moradi-dastjerdi Hamed Momeni-Khabisi Ramin Baghbani Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation Mechanics of Advanced Composite Structures wave propagation sandwich plate functional graded material mesh-free first-order shear deformation theory |
| title | Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation |
| title_full | Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation |
| title_fullStr | Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation |
| title_full_unstemmed | Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation |
| title_short | Mesh-free Dynamic Analyses of FGM Sandwich Plates Resting on A Pasternak Elastic Foundation |
| title_sort | mesh free dynamic analyses of fgm sandwich plates resting on a pasternak elastic foundation |
| topic | wave propagation sandwich plate functional graded material mesh-free first-order shear deformation theory |
| url | https://macs.semnan.ac.ir/article_2624_b408acaab5d0b87c655139a3e15abcd0.pdf |
| work_keys_str_mv | AT rasoolmoradidastjerdi meshfreedynamicanalysesoffgmsandwichplatesrestingonapasternakelasticfoundation AT hamedmomenikhabisi meshfreedynamicanalysesoffgmsandwichplatesrestingonapasternakelasticfoundation AT raminbaghbani meshfreedynamicanalysesoffgmsandwichplatesrestingonapasternakelasticfoundation |