WAVE PROPAGATION IN THREE-DIMENSIONAL GRAPHENE AEROGEL CYLINDRICAL SHELLS RESTING ON WINKLER-PASTERNAK ELASTIC FOUNDATION

被引：8
|
作者：
Liang, Chen [1 ]
Wang, Yan Qing [1 ,2 ]
机构：
[1] Northeastern Univ, Dept Mech, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Peoples R China
来源：
JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES | 2020年 / 15卷 / 04期
基金：
中国国家自然科学基金;
关键词：
three-dimensional graphene aerogel; cylindrical shell; wave propagation; Winkler-Pasternak elastic foundation; first-order shear deformation theory; CARBON NANOTUBES; GRADIENT; VIBRATION; SCALES; PLATES; FOAMS; MODEL;
D O I：
10.2140/jomms.2020.15.435
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The objective of this work is to investigate the wave propagation characteristics of circular cylindrical shells made of three-dimensional graphene aerogel (3D-GA). Different distributions of 3D-GA inside the shells are taken into account. The first-order shear deformation (FSD) shell theory is utilized to model the present shells. Hamilton's principle is employed to drive the equations of motion, which governs the wave propagation behavior of 3D-GA cylindrical shells. The analytical wave dispersion relations with longitudinal and circumferential wave numbers are obtained. In addition, detailed parametric studies are conducted to emphasize the influences of the porosity distribution, the porosity coefficient, the radius-to-thickness ratio, the applied forces and the elastic foundation on wave propagation characteristics of 3D-GA cylindrical shells.
引用
收藏
页码：435 / 455
页数：21
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