Remote Strain Sensing of CFRP using Microwave Frequency Domain Reflectometry

被引：0
|
作者：
Wilson, William C. [1 ]
Moore, Jason P. [1 ]
Juarez, Peter D. [1 ]
机构：
[1] NASA, Langley Res Ctr, Nondestruct Evaluat Sci Branch, Hampton, VA 23665 USA
来源：
PROCEEDINGS OF THE 2016 IEEE NATIONAL AEROSPACE AND ELECTRONICS CONFERENCE (NAECON) AND OHIO INNOVATION SUMMIT (OIS) | 2016年
关键词：
Microwave; Frequency Domain Reflectometry; Electromagnetic; CFRP; strain; RF; COMPOSITES; INSPECTION;
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
NASA's Advanced Composites Project is investigating technologies that increase automated remote inspection of aircraft composite structures. Therefore, microwave Frequency Domain Reflectometry (FDR) is being investigated as a method of enabling rapid remote measurement of strain occurring at the first ply of a composite fiber reinforced polymer (CFRP) structure using Radio Frequency (RF) Electro-Magnetic (EM) radiation. While microwave reflectometry has been used to detect disbonds in CFRP structures, its use in detecting strain has been limited. This work will present data demonstrating the measurement of the reactance changes due to loading conditions that are indicative of strain in a CFRP structure. In addition, the basic EM signature will be presented along with an analysis of temperature and humidity effects.
引用
收藏
页码：401 / 406
页数：6
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