Title:
APPARATUS AND METHOD FOR DETECTING COMPOSITE MATERIAL DAMAGE DUE TO IMPACT BY USING DISTRIBUTED OPTICAL FIBERS
Document Type and Number:
WIPO Patent Application WO/2019/139387
Kind Code:
A1
Abstract:
The present invention relates to an apparatus and method for detecting composite material damage due to impact by using distributed optical fibers. The objective of the present invention is to provide an apparatus and method for detecting composite material damage due to impact by using distributed optical fibers, wherein the position and level of damage occurring in a composite material due to low-velocity impact can be effectively and economically detected by measuring the residual strain of optical fibers distributed on the surface of the composite material or inside the composite material. Another objective of the present invention is to provide an apparatus and method for detecting composite material damage due to impact by using distributed optical fibers, wherein there is no need to always operate a sensor in real time, so that detection errors due to temporary failures, malfunctions, etc. of the sensor, as well as a problem of constantly supplying power to the sensor, can be essentially removed.
Inventors:
KWON IL-BUM (KR)
SEO DAE-CHEOL (KR)
KIM CHI YUP (KR)
SEO DAE-CHEOL (KR)
KIM CHI YUP (KR)
Application Number:
PCT/KR2019/000417
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
Assignee:
KOREA RES INST STANDARDS & SCI (KR)
International Classes:
G01M5/00; G01B11/16; G01M1/20; G01N29/12; G01N29/44
Foreign References:
| JP3492943B2 | 2004-02-03 | |||
| JP2003065942A | 2003-03-05 | |||
| JP2002107122A | 2002-04-10 | |||
| KR101168399B1 | 2012-07-26 | |||
| JP2006208264A | 2006-08-10 |
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
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