3-DIMENSIONAL ULTRASONIC-IMAGING OF DEFECTS AND DAMAGE IN COMPOSITE-MATERIALS

被引：0
|
作者：
WOOH, SC [1 ]
DANIEL, IM [1 ]
机构：
[1] NORTHWESTERN UNIV,ROBERT R MCCORMICK SCH ENGN & APPL SCI,EVANSTON,IL 60208
来源：
MATERIALS EVALUATION | 1994年 / 52卷 / 10期
关键词：
COMPOSITE MATERIALS; DEFECTS; IMAGING; NONDESTRUCTIVE EVALUATION; 3-DIMENSIONAL IMAGING; ULTRASONIC TESTING;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Based on the analysis of ultrasonic A-scans, a scanning system was developed to construct a pseudo three-dimensional image of discontinuity and damage in composite materials. Special echo detection techniques were successfully developed and applied for detecting delaminations due to low velocity impact on a thin composite plate and planar inclusions in thick plates. The same imaging procedure was applied in both cases. Bull volume evaluation of a defect/damage map was practically possible by developing an archival storage database system built with an efficient compression scheme and a pattern matching algorithm that is best suited for the particular scanning system.
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页码：1199 / 1206
页数：8
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