Impact damage detection system using small-diameter optical fiber sensors wavily embedded in CFRP laminate structures

2003 ◽  
Author(s):  
Hiroaki Tsutsui ◽  
Akio Kawamata ◽  
Junichi Kimoto ◽  
Akira Isoe ◽  
Yasuo Hirose ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Damage Detection ◽  
Detection System ◽  
Impact Damage ◽  
Small Diameter ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Cfrp Laminate

Impact damage detection system using small-diameter optical-fiber sensors embedded in CFRP laminate structures

2004 ◽  
Vol 13 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Hiroaki Tsutsui ◽  
Akio Kawamata ◽  
Junichi Kimoto ◽  
Akira Isoe ◽  
Yasuo Hirose ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Damage Detection ◽  
Detection System ◽  
Impact Damage ◽  
Small Diameter ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Cfrp Laminate

Research and development of impact damage detection system for airframe structures using optical fiber sensors

2008 ◽  
Author(s):  
Hiroaki Tsutsui ◽  
Noriyoshi Hirano ◽  
Junichi Kimoto ◽  
Takahiko Akatsuka ◽  
Hirofumi Sashikuma ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Research And Development ◽  
Damage Detection ◽  
Detection System ◽  
Impact Damage ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Airframe Structures

Verification of the impact damage detection system for airframe structures using optical fiber sensors

2009 ◽  
Author(s):  
Noriyoshi Hirano ◽  
Hiroaki Tsutsui ◽  
Junichi Kimoto ◽  
Takahiko Akatsuka ◽  
Hirofumi Sashikuma ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Damage Detection ◽  
Detection System ◽  
Impact Damage ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Airframe Structures ◽  
The Impact

Development of small-diameter optical fiber sensors for damage detection in composite laminates

2000 ◽  
Author(s):  
Kouji Satori ◽  
Yukio Ikeda ◽  
Yoshinori Kurosawa ◽  
Akihito Hongo ◽  
Nobuo Takeda
Keyword(s):  
Optical Fiber ◽  
Damage Detection ◽  
Composite Laminates ◽  
Small Diameter ◽  
Optical Fiber Sensors ◽  
Fiber Sensors

Detection Research on Weak Stress Wave in Rock-Soil Based on Quasi Distributed Optical Fiber Sensing Technology

2012 ◽  
Vol 542-543 ◽  
pp. 933-936
Author(s):  
Chong Feng Sun ◽  
Zhi Hui Li ◽  
Su Min Jiao ◽  
Xue Mei Wang ◽  
Cai Hong Wang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Dynamic Loading ◽  
Detection System ◽  
Michelson Interferometer ◽  
Low Pressure ◽  
Optical Fiber Sensors ◽  
Stress Sensitivity ◽  
Fiber Sensors ◽  
Set Up ◽  
Distributed Optical Fiber

To detect low-pressure dynamic loading in rock-soil, optical fiber Michelson interferometer was adopted to set up the sensing system. Polyurethane package was used to enhance stress sensitivity of optical fiber sensors that composed quasi distributed optical fiber detection system. The sensitivity of optical fiber senor reached -170dB, and met the measurement requirement of low pressure dynamic loading at 0.001MPa-0.01MPa. The results proved that it was feasible to detect low-pressure dynamic loading using the designed optical fiber sensors. It provides a new experiment method for research on response of low-pressure dynamic loading in geotechnical engineering.

Use of conventional optical fibers and fiber Bragg gratings for damage detection in advanced composite structures: A review

2003 ◽  
Vol 56 (5) ◽  
pp. 493-513 ◽  
Author(s):  
KSC Kuang and ◽  
WJ Cantwell
Keyword(s):  
Composite Materials ◽  
Optical Fiber ◽  
Damage Detection ◽  
Health Monitoring ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Structural Health ◽  
Advanced Composite ◽  
Advanced Composite Materials ◽  
Attractive Option

Structurally integrated sensors which are capable of continuous structural health monitoring represent an attractive option in view of their potential for providing real-time assessment/warning of structural damage. In recent years, optical fiber systems have attracted a considerable amount of attention and have been shown to be a very attractive option for health monitoring in advanced composite materials. These sensors have either been embedded or surface-bonded to the host material thereby allowing continuous assessment of the health of the structure. Structural health assessment takes the form of damage detection and/or monitoring of specific health indicators. In the former approach, the optical fiber systems are generally optimized to increase their sensitivity to the presence of damage in the composite structure, while the latter approach relies on the examination of characteristic changes in the monitored parameter to infer a loss in structural integrity. To this end, many investigators have demonstrated the potential of optical fiber sensors, most particularly intensity-based optical fiber systems and fiber Bragg grating sensors for structural health monitoring of advanced composite materials. The initial part of this paper provides an up-to-date review of the applications of optical fiber sensors in composite materials, focussing particularly on the use of intensity-based optical fiber systems and fiber Bragg grating sensors for damage detection. These optical fiber systems have been shown to be capable of detecting impact damage, transverse cracking, and delamination, and have the ability to monitor strain in structures. The introduction of optical fiber sensors into a composite material can inadvertently produce a geometrical discontinuity in the vicinity of the sensor. Numerous experimental investigations have also been performed to assess the possible reduction in the properties of the host structure. A review of the findings of these investigations reported in the literature is also given. This review article cites 161 references.

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