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Nonlinear thermo-mechanical response of eccentrically stiffened Sigmoid FGM circular cylindrical shells subjected to compressive and uniform radial loads using the Reddy's third-order shear deformation shell theory |
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| Authors: | Nguyen Dinh Duc Nguyen Dinh Khoa Hoang Thi Thiem |
| Affiliation: | 1. Advanced Materials and Structures Laboratory, VNU Hanoi, University of Engineering and Technology, Hanoi, Vietnam;2. Infrastructure Engineering Program, VNU Hanoi, Vietnam-Japan University (VJU), Hanoi, Vietnam;3. Faculty of Mathematics, Mechanics and Informatics, VNU Hanoi, University of Sciences, Hanoi, Vietnam |
| Abstract: | Based on Reddy's third-order shear deformation shell theory, this paper presents an analytical approach to investigate the nonlinear thermo-mechanical response of imperfect Sigmoid FGM circular cylindrical shells surrounded on elastic foundations and reinforced by outside metal stiffeners. The eccentrically stiffened S-FGM shells are subjected to axial compressive load and uniform radial load in thermal environment. Using the stress function, Bubnov–Galerkin method, the paper proposes the formula for forces and moments taking into account the thermal stress in both the shells and stiffeners. The obtained results are validated by comparing with other results reported in the literature. |
| Keywords: | Nonlinear thermo-mechanical response shear deformable eccentrically stiffened Sigmoid FGM circular cylindrical shells Reddy's third-order shear deformation shell theory axial compressive and uniform radial loads thermal environment elastic foundations |