FREE-VIBRATIONS OF MULTILAYERED THICK COMPOSITE SHELLS

被引:8
作者
KUMAR, RR [1 ]
RAO, YVKS [1 ]
机构
[1] LIQUID PROPELLANT SYST UNIT,DIV STAGE ENGN & ANAL,TRIVANDRUM,INDIA
关键词
COMPOSITE SHELLS - FREE VIBRATIONS;
D O I
10.1016/0045-7949(88)90410-5
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Free vibration characteristics of a multilayered graphite/epoxy circular cylindrical shell are presented using an eight-noded isoparametric quadrilateral shear flexible shell element. The effects of rotary inertia are considered in the formulation of the mass matrix. Variations of length to radius and radius to thickness ratios of the shell, and different fibre orientations such as (0/90 degree ), (0/90/0/90 degree ), (0/90 degree )//s and (0/90/0/90 degree )//s with respect to the frequency parameter, K// omega , are studied. The influence of the ratio of major to minor Young's moduli on frequency parameter is also shown. Comparison of numerical results with those available in the literature shows a good agreement.
引用
收藏
页码:717 / 722
页数:6
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