DETERMINATION OF THE PROPERTIES OF COMPOSITE INTERFACES BY AN ULTRASONIC METHOD

被引:6
|
作者
MAL, AK [1 ]
KARIM, MR [1 ]
BARCOHEN, Y [1 ]
机构
[1] MCDONNELL DOUGLAS CORP,DOUGLAS AIRCRAFT CO,LONG BEACH,CA 90846
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1990年 / 126卷
关键词
D O I
10.1016/0921-5093(90)90122-J
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The feasibility of using a recently developed ultrasonic technique to determine certain macroscopic properties of the interface zones of composite laminates is studied. The strong influence of the elastic properties and the thickness of the interface zone on the phase velocity of guided waves is demonstrated by means of a simple model of a single fiber embedded in a layer of the matrix material. The overall dynamic elastic moduli of a unidirectional graphite-epoxy composite laminate are determined through inversion of guided wave dispersion data obtained by the leaky Lamb wave experiment. The thickness and elastic properties of the interlaminar interface zone in a cross-ply graphite-epoxy laminate are also estimated by the same approach. © 1990.
引用
收藏
页码:155 / 164
页数:10
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