FREE-VIBRATIONS OF DELAMINATED BEAMS

被引：239

作者：

SHEN, MHH ^{[1
]}

GRADY, JE ^{[1
]}

机构：

[1] NASA,LEWIS RES CTR,CLEVELAND,OH 44135

来源：

AIAA JOURNAL | 1992年 / 30卷 / 05期

关键词：

D O I：

10.2514/3.11072

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Free vibration of laminated composite beams is studied. The effect of interply delaminations on natural frequencies and mode shapes is evaluated both analytically and experimentally. A generalized variational principle is used to formulate the equation of motion and associated boundary conditions for the free vibration of a composite beam with a delamination of arbitrary size and location. The effect of coupling between longitudinal vibration and bending vibration is considered. This coupling effect is shown to significantly effect the calculated natural frequencies and mode shapes of the delaminated beam.

引用

页码：1361 / 1370

页数：10

共 22 条

[1] INSTABILITY OF A PARTIALLY DELAMINATED SURFACE-LAYER OF AN OSCILLATING CYLINDER [J].