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- W3160640354 abstract "• The VAM-based equivalent model of HCCP is established, and verified by comparing with 3D-FEM. • The static and dynamic behaviors of HCCP are systematically analyzed using 2D-EPM. • The effects of geometric and material parameters on buckling load and natural frequency are analyzed. • The details of local field distribution within unit cell of HCCP are well captured. • The DOFs of the 2D-EPM is greatly reduced, resulting in high calculation efficiency. In order to deeply study the static and dynamic behavior of hemispherical convex-concave composite plate (HCCP) under different conditions and avoid structural damage, the equivalent model of HCCP was developed based on variational asymptotic method. The constitutive modeling of unit cell was carried out to obtain the constitutive relations that can be used as effective plate properties for the 2-D equivalent plate model (2D-EPM). The accuracy of the equivalent model and the obtained equivalent stiffness are verified by comparing with the static displacement, global buckling and free-vibration of 3D finite element model (3D-FEM). The influence of different layup configurations of laminates and geometric parameters on the equivalent stiffness, vibration characteristics and global buckling of HCCP are discussed. The results show that the buckling loads and natural frequencies obtained by using equivalent model are in good agreement with 3D-FEM. The vibration and buckling of HCCP are closely related to the geometric sizes and layup configurations of the laminate, and the local field distributions within the unit cell of HCCP are well captured. Most importantly, the calculation efficiency is greatly improved. The research results provide a reference for the practical application of HCCP in the civil engineering." @default.
- W3160640354 created "2021-05-24" @default.
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- W3160640354 date "2021-09-01" @default.
- W3160640354 modified "2023-10-12" @default.
- W3160640354 title "Static and dynamic analysis of hemispherical convex-concave composite plate (HCCP) using variational asymptotic equivalent model" @default.
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- W3160640354 doi "https://doi.org/10.1016/j.compstruct.2021.114116" @default.
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