Nonlinear bending analysis of FG-CNTRC plate resting on elastic foundation by natural element method
- Authors
- Cho, J.R.
- Issue Date
- 1-Aug-2022
- Publisher
- Elsevier Ltd
- Keywords
- Elastic foundation; FG-CNTRC plate; Force-bending moment; Force-deflection; Natural element method (NEM); Nonlinear bending analysis
- Citation
- Engineering Analysis with Boundary Elements, v.141, pp.65 - 74
- Journal Title
- Engineering Analysis with Boundary Elements
- Volume
- 141
- Start Page
- 65
- End Page
- 74
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/29498
- DOI
- 10.1016/j.enganabound.2022.05.008
- ISSN
- 0955-7997
- Abstract
- A nonlinear numerical analysis is addressed for a functionally graded carbon nanotube-reinforced composite (FG-CNTRC) plate on elastic foundation. The large deflection bending problem is formulated according to the von Kármán nonlinear theory and the (1,1,0)* hierarchical model. And, it is numerically solved by 2-D (two-dimensional) natural element method (NEM) which is characterized by a high accuracy even for coarse grid. The derived nonlinear matrix equations are iteratively calculated by combining the load increment scheme and the Newton-Raphson iteration method. The present method was verified through the benchmark test, where the present method shows excellent agreement with the reference solutions. The nonlinear behavior of FG-CNTRC plate on elastic foundation is evaluated in terms of the non-dimensional deflection and bending moment. These non-dimensional quantities are examined with respect to the foundation stiffness, the volume fraction and gradient pattern of CNT, the aspect and width-thickness ratios of plate and the boundary condition. From the parametric experiments, it is found that both non-dimensional quantities are significantly influenced by such parameters. © 2022 Elsevier Ltd
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Collections - College of Science and Technology > Department of Naval Architecture and Ocean Engineering > 1. Journal Articles
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