Výsledky vyhledávání - "Junichiro KUWAHARA"

Damage Detection in CFRP Bonded Structures by Using Fiber Bragg Grating Sensors as Ultrasonic Wave Receivers

Autor: Yoji Okabe, Toshimichi Ogisu, Seiji Kojima, Nobuo Takeda, Junichiro Kuwahara

Publikováno v: Key Engineering Materials. :1137-1140

The authors developed a damage detection system that generates ultrasonic waves with a piezo-ceramic actuator and receives them by a fiber Bragg grating (FBG) sensor. In this research, this system was applied to evaluate debonding progress in CFRP sk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a585a3f19f79ad67e719c3d0ea7b7378
https://doi.org/10.4028/www.scientific.net/kem.334-335.1137

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Development of smart composite structures with small-diameter fiber Bragg grating sensors for damage detection: Quantitative evaluation of delamination length in CFRP laminates using Lamb wave sensing

Autor: Junichiro Kuwahara, Seiji Kojima, Toshimichi Ogisu, Nobuo Takeda, Yoji Okabe

Publikováno v: Composites Science and Technology. 65:2575-2587

The authors and Hitachi Cable, Ltd. have recently developed small-diameter optical fiber and its fiber Bragg grating (FBG) sensor for embedment inside a lamina of composite laminates without strength reduction. The outside diameters of the cladding a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::869b4210d25cb2d090df6e48224a6a57
https://doi.org/10.1016/j.compscitech.2005.07.014

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Detection of Delaminations in CFRP Laminates by Using FBG Sensors as Lamb Wave Receiver

Autor: Yoji Okabe, Seiji Kojima, Nobuo Takeda, Junichiro Kuwahara, Hisao Tamaue

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 53:166-173

Lamb waves can propagate for long distance and change its waveform depending on the existence of damages within the propagation path. Hence, from the change in the waveform, the damages inside a structure can be detected. In this research, a new heal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e6ff548aefdf74ada5979ce33989ed4
https://doi.org/10.2322/jjsass.53.166

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Evaluation of debonding progress in composite bonded structures by ultrasonic wave sensing with fiber Bragg grating sensors

Autor: Nobuo Takeda, Toshimichi Ogisu, Seiji Kojima, Yoji Okabe, Junichiro Kuwahara, Shinji Komatsuzaki

Publikováno v: SPIE Proceedings.

The authors are constructing a damage detection system using ultrasonic waves. In this system, a piezo-ceramic actuator generates ultrasonic waves in a carbon fiber reinforced plastic (CFRP) laminate. After the waves propagate in the laminate, transm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bd1a40b7043d71c1e883cd0803a6a69
https://doi.org/10.1117/12.657510

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Damage growth monitoring for a bonding layer of the aircraft bonding structure

Autor: Nobuo Takeda, Masakazu Shimanuki, Junichiro Kuwahara, Toshimichi Ogisu, Yoji Okabe, Hiroshi Yoneda, Tateo Sakurai

Publikováno v: Smart Structures and Materials 2006: Industrial and Commercial Applications of Smart Structures Technologies.

This study is about some of the results of the test performed for the purpose of developing the damage monitoring system with the advanced composite bonding structure applied to a next generation aircraft. Through the past researches, we succeeded in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b081d88639ad85a5b4d8eece8c28cdab
https://doi.org/10.1117/12.658555

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Lamb wave sensing using fiber Bragg grating sensors for delamination detection in composite laminates

Autor: Nobuo Takeda, Seiji Kojima, Junichiro Kuwahara, Yoji Okabe

Publikováno v: Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems.

The authors are constructing a damage detection system using ultrasonic waves. In this system, a piezo-ceramic actuator generates Lamb waves in a CFRP laminate. After the waves propagate in the laminate, transmitted waves are received by a fiber Brag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::316b7e9c6f5551d8f3a286003db59b1a
https://doi.org/10.1117/12.598594

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