Thermal stability of eccentrically stiffened FGM plate on elastic foundation based on Reddy's third-order shear deformation plate theory |
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| Authors: | Nguyen Dinh Duc Pham Hong Cong Vu Dinh Quang |
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| Affiliation: | 1. Advanced Materials and Structures Laboratory, VNU-Hanoi, University of Engineering and Technology, Cau Giay, Hanoi, Vietnamducnd@vnu.edu.vn;3. Advanced Materials and Structures Laboratory, VNU-Hanoi, University of Engineering and Technology, Cau Giay, Hanoi, Vietnam;4. Centre for Informatics and Computing, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam |
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| Abstract: | This article studies the nonlinear thermal buckling and postbuckling of eccentrically stiffened functionally graded plates on elastic foundation subjected to mechanical, thermal, and thermomechanical loads. The noticeable point of this study is using the Reddy's higher order shear deformation plate theory and a general formula for the forces and moments of eccentrically stiffened functionally graded material (FGM) plate, which takes into account the influence of temperature on both the FGM plate and stiffeners. The article used the Galerkin method, stress function, and iterative method to determine the thermal buckling loads and postbuckling response of the eccentrically stiffened FGM plates in three different cases of boundary conditions. The effects of material, temperature-dependent material properties, elastic foundations, boundary conditions, outside stiffeners, and temperature on the buckling and postbuckling loading capacity of the FGM plates in thermal environments are analyzed and discussed. A good agreement is obtained by comparing the present analysis with other available literature. |
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| Keywords: | Eccentrically stiffened FGM plate nonlinear thermal stability Reddy's higher order shear deformation plate theory temperature-dependent materials properties |
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