Transient response of functionally graded carbon nanotubes reinforced composite conical shell with ring-stiffener under the action of impact loads

被引：11
作者：
Avramov, K. [1 ,2 ,3 ]
Uspensky, B. [1 ]
Sakhno, N. [1 ,2 ]
Nikonov, O. [4 ]
机构：
[1] Natl Acad Sci Ukraine, Podgorny Inst Mech Engn, Dept Vibrat, Kharkiv, Ukraine
[2] Natl Tech Univ, Kharkiv Polytech Inst, Kharkiv, Ukraine
[3] Kharkiv Natl Univ Radio Elect, Dept Tech Syst, Kharkov, Ukraine
[4] Kharkiv Natl Automobile & Highway Univ, Dept Comp Sci & Mech, 25 Yaroslava Mudrogo St, UA-61002 Kharkov, Ukraine
来源：
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS | 2022年 / 91卷
基金：
新加坡国家研究基金会;
关键词：
Functionally graded carbon nanotubes; reinforced composite; Truncated conical shell; Assumed-mode method; Linear dynamical system; Transient response; FREE-VIBRATION ANALYSIS; CYLINDRICAL-SHELLS; MECHANICAL-PROPERTIES; SHALLOW SHELLS; NANOCOMPOSITES; PLATES; EPOXY;
D O I：
10.1016/j.euromechsol.2021.104429
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The mathematical model of transient response of functionally graded carbon nanotubes reinforced conical shell with ring-stiffener is derived. The deformation state of the conical shell is described by the Reddy higher-order shear deformation theory. The deformation of the isotropic ring-stiffener is described by the Euler-Bernoulli hypotheses. The Rayleigh-Ritz method is used to analyze the eigenmodes of the nanocomposite structure. Displacements projections and rotations of middle surface normal are the main unknowns of the problem. The mathematical model of the structure transient response is obtained as the linear dynamical system with respect to generalized coordinates. The assumed mode method is used to obtain this dynamical system. The influence of the type of carbon nanotube composite reinforcement on the amplitudes of the transient responses is analyzed. As follows from the numerical simulations, the top ring-stiffener significantly decreases the amplitudes of the transient response of the nanocomposite structure.
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页数：13
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