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.

引用

页码：1199 / 1206

页数：8

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