Laminated composite stiffened shallow spherical panels with cutouts under free vibration - A finite element approach

被引：20

作者：

Sahoo, Sarmila ^{[1
]}

机构：

[1] Heritage Inst Technol, Dept Civil Engn, Kolkata 700107, India

来源：

ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH | 2014年 / 17卷 / 04期

关键词：

Laminated composites; Stiffened shallow spherical shell panel; Cutout; Free vibration; Finite element;

D O I：

10.1016/j.jestch.2014.07.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, finite element method has been applied to analyze free vibration problems of laminated composite stiffened shallow spherical shell panels with cutouts employing the eight-noded curved quadratic isoparametric element for shell with a three noded beam element for stiffener formulation. Specific numerical problems of earlier investigators are solved and compared to validate the present formulation. Moreover, free vibration problem of stiffened shallow spherical shell panels with different size and position of the cutouts with respect to the shell centre for different edge constraints are examined to arrive at some conclusions useful to the designers. The results are presented in the form of figures and tables. The results are further analyzed to suggest guidelines to select optimum size and position of the cutout with respect to shell centre considering different practical constraints. Copyright (C) 2014, Karabuk University. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：247 / 259

页数：13

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