Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 318, Issue -, Pages 270-295Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2017.01.021
Keywords
Sandwich plate; Fourier series; Instability; Wrinkling; Asymptotic Numerical Method
Funding
- National Natural Science Foundation of China [11372231]
- Science and Technology Agency of Hubei Province [2011CDA047]
- China Scholarship Council, the China Postdoctoral Science Foundation
- National Research Fund of Luxembourg [INTER/MOBILITY/5667608]
- National Research Fund of Luxembourg (WRINKLE) [FNR/784868]
- French National Research Agency ANR (Labex DAMAS) [ANR11-LABX-0008-01]
Ask authors/readers for more resources
This paper presents a Fourier-related double scale analysis to study the instability phenomena of sandwich plates. By expanding the displacement field into Fourier series, the sandwich plate model proposed by Yu et al. (2015), using the classical plate theory in the skins and high-order kinematics in the core, is transformed into a new Fourier-based reduced two-dimensional sandwich plate model with the slowly varying Fourier coefficients as macroscopic unknowns. The resulting nonlinear equations are solved by the Asymptotic Numerical Method (ANM), which is very efficient and reliable to capture the bifurcation point and the post-buckling path in wrinkling analyses. Both antisymmetrical and symmetrical wrinkling for sandwich plates under uni-axial and equi-biaxial compressive loads are studied and the numerical results demonstrate that the Fourier-based finite element model can accurately yet efficiently predict wrinkling patterns and critical loads, especially when dealing with wrinkling phenomena with extremely large wavenumbers. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available