• 文献标题:   WAVE PROPAGATION IN THREE-DIMENSIONAL GRAPHENE AEROGEL CYLINDRICAL SHELLS RESTING ON WINKLER-PASTERNAK ELASTIC FOUNDATION
  • 文献类型:   Article
  • 作  者:   LIANG C, WANG YQ
  • 作者关键词:   threedimensional graphene aerogel, cylindrical shell, wave propagation, winklerpasternak elastic foundation, firstorder shear deformation theory
  • 出版物名称:   JOURNAL OF MECHANICS OF MATERIALS STRUCTURES
  • ISSN:   1559-3959
  • 通讯作者地址:   Northeastern Univ
  • 被引频次:   0
  • DOI:   10.2140/jomms.2020.15.435
  • 出版年:   2020

▎ 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.