Natural frequency analysis of a sandwich panel with soft core based on a refined shear deformation model

被引：13

作者：

Liu, QL

Zhao, Y ^{[1
]}

机构：

[1] Embry Riddle Aeronaut Univ, Dept Aerosp Engn, Daytona Beach, FL 32114 USA

[2] Univ Nevada, Dept Mech Engn, Las Vegas, NV 89154 USA

来源：

COMPOSITE STRUCTURES | 2006年 / 72卷 / 03期

关键词：

natural frequency; sandwich panel; soft core; refined shear deformation theory;

D O I：

10.1016/j.compstruct.2005.01.006

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The natural frequency of a thick rectangular sandwich panel composed of orthotropic facesheets and a soft core was studied based on a refined shear deformation model. The shear deformation of the sandwich panel was described by a polynomial function. The effect of transverse shear modulus of the facesheets and core on flexural vibration of the panel was investigated. Comparison was made among classical thin plate theory, linear shear (low order) deformation theory and the refined shear (high order) deformation model. Results from finite element analysis were also provided to verify the theoretical predictions. It was shown that the refined shear deformation model provided a better prediction on the natural frequency of vibration of a sandwich panel than thin plate model or low order deformation model. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：364 / 374

页数：11

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