NATURAL-MODES OF GRAPHITE-EPOXY CANTILEVER PLATES AND SHELLS

被引：88

作者：

CRAWLEY, EF

机构：

[1] Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge

来源：

JOURNAL OF COMPOSITE MATERIALS | 1979年 / 13卷 / JUL期

关键词：

D O I：

10.1177/002199837901300302

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The natural frequencies and mode shapes of a number of Graphite/ Epoxy and Graphite/Epoxy-Aluminum plates and shells were experimen tally determined. The samples tested include 8 ply Graphite/Epoxy plates, cyclindrical shell sections, and Graphite/Epoxy-Aluminum hybrid plates of various laminates and aspect ratio. Fabrication and test procedures are described. Natural frequency and mode shape results are compared with those calculated by a finite element analysis. Agreement between calcu lated and observed mode shapes is excellent; while reasonable agreement is found for frequencies. Among the sources of this discrepancy in frequency results is the possibility of a difference between dynamic-flexural moduli and static in-plane moduli. © 1979, Sage Publications. All rights reserved.

引用

页码：195 / 205

页数：11