A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on the dynamic characteristics of rotating metal–ceramic matrix DFG-CNTRC thin laminated shell with arbitrary boundary conditions
Abstract A dual-functional gradient carbon nanotube-reinforced composite(DFG-CNTRC) in which both the matrix and the carbon nanotubes(CNTs) are assumed to be functionally graded is proposed. The matrix is the metal–ceramic functionally graded material(FGM) whose properties change gradually along the thickness direction, aiming to further improve the mechanical properties and natural frequencies of the functionally graded structures. By adopting orthogonal polynomials to expand the shell displacement fields and the Rayleigh–Ritz method is used to derive the vibration differential equation. Then, based on the first-order shear deformation theory(FSDT), Donnell-type kinematic assumptions, and artificial spring technique, a general model for analyzing the free vibration of rotating DFG-CNTRC laminated shells with arbitrary boundary conditions is provided. The effects of rotating speed, CNTs’ volume fraction, matrix’ change and the middle layer’s thickness on the traveling waves are discussed, and the modal characteristics of DFG-CNTRC laminated shells are analyzed.
Highlights A DFG-CNTRC combining CNTs and functionally graded materials is proposed. A general model for the dynamic properties of the DFG-CNTRC shell structures is provided. The influence of matrix’s gradient change on traveling wave of the shell is analyzed. The change law of traveling waves is analyzed as the middle layer changes.
Research on the dynamic characteristics of rotating metal–ceramic matrix DFG-CNTRC thin laminated shell with arbitrary boundary conditions
Abstract A dual-functional gradient carbon nanotube-reinforced composite(DFG-CNTRC) in which both the matrix and the carbon nanotubes(CNTs) are assumed to be functionally graded is proposed. The matrix is the metal–ceramic functionally graded material(FGM) whose properties change gradually along the thickness direction, aiming to further improve the mechanical properties and natural frequencies of the functionally graded structures. By adopting orthogonal polynomials to expand the shell displacement fields and the Rayleigh–Ritz method is used to derive the vibration differential equation. Then, based on the first-order shear deformation theory(FSDT), Donnell-type kinematic assumptions, and artificial spring technique, a general model for analyzing the free vibration of rotating DFG-CNTRC laminated shells with arbitrary boundary conditions is provided. The effects of rotating speed, CNTs’ volume fraction, matrix’ change and the middle layer’s thickness on the traveling waves are discussed, and the modal characteristics of DFG-CNTRC laminated shells are analyzed.
Highlights A DFG-CNTRC combining CNTs and functionally graded materials is proposed. A general model for the dynamic properties of the DFG-CNTRC shell structures is provided. The influence of matrix’s gradient change on traveling wave of the shell is analyzed. The change law of traveling waves is analyzed as the middle layer changes.
Research on the dynamic characteristics of rotating metal–ceramic matrix DFG-CNTRC thin laminated shell with arbitrary boundary conditions
Miao, Xueyang (author) / Li, Chaofeng (author) / Pan, Yuchen (author)
Thin-Walled Structures ; 179
2022-05-19
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2018
| British Library Online Contents | 2018
| British Library Online Contents | 2018