期刊
COMPOSITE STRUCTURES
卷 201, 期 -, 页码 882-892出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2018.06.087
关键词
Geometrically nonlinear transients; Functionally graded carbon nanotube-reinforced composite plates (FG-CNTRC); Nonlocal theory; Isogeometric analysis (IGA); Temperature environments
资金
- Special Research Fund (BOF) of Ghent University, Belgium [BOF16/PDO/88]
- Ho Chi Minh City Open University, Vietnam [E2017.3.12.1]
This paper presents size-dependency effects on nonlinear transient dynamic response of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) nanoplates under a transverse uniform load in thermal environments. To consider the length scale and size-dependency effect of nanostructures, a nonlocal continuum theory of Eringen is adopted. The nonlocal governing equations for nanoplate theory are derived from the Hamilton's principle and approximated by using isogeometric analysis associated with the higher-order shear deformation theory. A numerical model based on the von Korman strains and Newmark time integration scheme is employed to solve geometrically nonlinear transient problems. The material properties of the FG-CNTRC nanoplate are assumed to be graded and temperature-dependent in the thickness direction, which are expressed through a micromechanical model. Effects of nonlocal parameter, carbon nanotube volume fraction, length-to-thickness ratio, distributions of carbon nanotubes and temperatures through thickness are investigated in detail. Several numerical results show the reliability of the present method.
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