A TECHNIQUE FOR RAPID IMPACT DAMAGE DETECTION WITH IMPLICATION FOR COMPOSITE AIRCRAFT STRUCTURES

被引：23

作者：

KOMOROWSKI, JP

SIMPSON, DL

GOULD, RW

机构：

来源：

COMPOSITES | 1990年 / 21卷 / 02期

关键词：

aircraft structure; barely visible; composite materials; D-Sight; damage tolerance; delamination; impact damage;

D O I：

10.1016/0010-4361(90)90009-L

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A technique using a simple optical arrangement (called D-Sight) involving a source of light and a retroreflective screen was patented by Diffracto Ltd. The method was used to locate indentations associated with low energy impact damage. In graphite/epoxy specimens good correlation was observed between internal impact damage as shown on ultrasonic C-scan images and indentations detected with the D-Sight method. Test specimens are currently mounted on an aircraft to observe the influence of in-service surface degradation on technique resolution. The method has the potential for inexpensive, rapid and objective detection of low energy impact damage over large areas of composite aircraft structure. Application of this method, because of its inherent reliability, could result in the increasing of the design allowable strain levels for some composite components. © 1990.

引用

页码：169 / 173

页数：5