Takahiro MIURA
著者に関連した記事は7件です。
更新情報
第2回
Laser-Ultrasonic Non-Destructive Testing:hniques and Applications in Nuclear Industry
著者:
Makoto OCHIAI,Takahiro MIURA,Satoshi YAMAMOTO,Toru ONODERA
発刊日:
公開日:
キーワードタグ:
bottom-mounted rumentation crack sizing laser peening laser-ultrasonics non-destructive testing preventative maintenance stress corrosion cracking surface acoustic wave
Makoto OCHIAI,Takahiro MIURA,Satoshi YAMAMOTO,Toru ONODERA
発刊日:
公開日:
キーワードタグ:
bottom-mounted rumentation crack sizing laser peening laser-ultrasonics non-destructive testing preventative maintenance stress corrosion cracking surface acoustic wave
A New method for non-destructive testing (NDT) of surface-breaking tight cracks based on laser-induced nce acoustic waves (SAW) is proposed. A Q-switched Nd:YAG laser is used to generate SAW through Live interaction between material and the laser pulses. The SAW is probed by an optical interferometer as a o displacement of the surface. A state-of-the-art technique in laser-ultrasonic NDT is reviewed: that is the < depth measurement by using fr equency analysis of SAW transmitted through cracks. The techni...
英字タイトル:
Laser-Ultrasonic Non-Destructive Testing:hniques and Applications in Nuclear Industry
英字タイトル:
Laser-Ultrasonic Non-Destructive Testing:hniques and Applications in Nuclear Industry
論文
Laser-ultrasonic study of micro crack sizing and its application to nuclear reactor internals
著者:
Makoto OCHIAI, Takahiro MIURA, Satoshi YAMAMOTO, Toru ONODERA,
発刊日:
公開日:
キーワードタグ:
bottom-mounted instrumentation crack sizing laser peening laser-ultrasonics non-destructive testing preventative maintenance stress corrosion cracking surface acoustic wave
Makoto OCHIAI, Takahiro MIURA, Satoshi YAMAMOTO, Toru ONODERA,
発刊日:
公開日:
キーワードタグ:
bottom-mounted instrumentation crack sizing laser peening laser-ultrasonics non-destructive testing preventative maintenance stress corrosion cracking surface acoustic wave
A new method for non-destructive testing（NDT）of surface-breaking tight cracks based on laser-induced surface acoustic waves（SAW）is proposed. A Q-switched Nd:YAG laser is used to generate SAW through ablative interaction between material and laser pulse. The SAW is probed by an optical interferometer as a micro displacement of the surface. A state-of-the-art technique in laser- ultrasonic NDT is developed: that is the crack depth measurement by using frequency analysis of laser-induced SAW transmitted throug...
英字タイトル:
Laser-ultrasonic study of micro crack sizing and its application to nuclear reactor internals
英字タイトル:
Laser-ultrasonic study of micro crack sizing and its application to nuclear reactor internals
第5回
多機能レーザ溶接ヘッドの開発（第１報）－水中レーザ溶接の基本特性評価－
著者:
河野 渉,Wataru KONO,千田 格,Itaru CHIDA,三浦 崇広,Takahiro MIURA,依田 正樹,Masaki YODA,牧野 吉延,Yoshinobu MAKINO,日野 武久,Takehisa HINO
発刊日:
公開日:
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Clad weld Preventive maintenance Repair Seal weld Under water laser welding
河野 渉,Wataru KONO,千田 格,Itaru CHIDA,三浦 崇広,Takahiro MIURA,依田 正樹,Masaki YODA,牧野 吉延,Yoshinobu MAKINO,日野 武久,Takehisa HINO
発刊日:
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Clad weld Preventive maintenance Repair Seal weld Under water laser welding
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventi ve maintenance and laser ultrasonic testing as inspection. Laser transmission test with multifunction laser welding head and optical fiber was carried out. The result showed that laser power needed for welding was transmitted without any damage to them. Under water laser welding onto EDM slits with this welding head w as carried out. EDM slits were...
英字タイトル:
Development of Multifunction Laser Welding Head (1) - Evaluation of Under Water Laser Welding with Multifunction Laser Welding Head -
英字タイトル:
Development of Multifunction Laser Welding Head (1) - Evaluation of Under Water Laser Welding with Multifunction Laser Welding Head -
第5回
多機能レーザ溶接ヘッドの開発（第２報）－レーザピーニングによる応力改善性評価－
著者:
千田 格,Itaru CHIDA,河野 渉,Wataru KONO,三浦 崇広,Takahiro MIURA,向井 成彦,Naruhiko MUKAI,依田 正樹,Masaki YODA
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Laser peening Preventive maintenance Repair Stress corrosion cracking (SCC)
千田 格,Itaru CHIDA,河野 渉,Wataru KONO,三浦 崇広,Takahiro MIURA,向井 成彦,Naruhiko MUKAI,依田 正樹,Masaki YODA
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Laser peening Preventive maintenance Repair Stress corrosion cracking (SCC)
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventive maintenance and laser ultrasonic testing as inspection. By using the effect of color aberration with optics, laser beam was focused to the ideal spot size on each process. Laser p eening was performed on the material surface with the developed head, and stress improvement ability was confirmed....
英字タイトル:
Development of Multifunction Laser Welding Head (2) - Stress Improvement by Laser Peening Technology -
英字タイトル:
Development of Multifunction Laser Welding Head (2) - Stress Improvement by Laser Peening Technology -
第5回
多機能レーザ溶接ヘッドの開発（第３報）－レーザ超音波法による表面検査技術の開発－
著者:
三浦 崇広,Takahiro MIURA,河野 渉,Wataru KONO,千田 格,Itaru CHIDA,吉田 昌弘,Masahiro YOSHIDA,山本 智,Satoshi YAMAMOTO,依田 正樹,Masaki YODA,落合 誠,Makoto OCHIAI
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Laser-ultrasonics Penetrant Testing Preventive maintenance SAFT Weld Defect
三浦 崇広,Takahiro MIURA,河野 渉,Wataru KONO,千田 格,Itaru CHIDA,吉田 昌弘,Masahiro YOSHIDA,山本 智,Satoshi YAMAMOTO,依田 正樹,Masaki YODA,落合 誠,Makoto OCHIAI
発刊日:
公開日:
キーワードタグ:
Laser-ultrasonics Penetrant Testing Preventive maintenance SAFT Weld Defect
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventive maintenance and laser ultrasonic test ing as inspection. For inspection with multifunction laser welding head, a new method of visualized weld defects in water by laser-ultrasonics has developed. To detect and visualize a surface of weld metal with welding bead, the authors have developed a new detection method by leaky wave induced by interactio...
英字タイトル:
Development of Multifunction Laser Welding Head (3) - Surface Inspection Technique by Laser-ultrasonics -
英字タイトル:
Development of Multifunction Laser Welding Head (3) - Surface Inspection Technique by Laser-ultrasonics -
第7回
曲面を持つ配管ノズル部から探傷可能なフェーズドアレイ超音波技術の開発
著者:
三浦 崇広,Takahiro MIURA,山本 摂,Setsu YAMAMOTO,落合 誠,Makoto OCHIAI,三橋 忠浩,Tadahiro MITSUHASHI,安達 弘幸,Hiroyuki ADACHI,山本 智,Satoshi YAMAMOTO,末園 暢一,Nobuichi SUEZONO
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Gel Immersion Technique Phased Array UT SAFT Ultrasonic
三浦 崇広,Takahiro MIURA,山本 摂,Setsu YAMAMOTO,落合 誠,Makoto OCHIAI,三橋 忠浩,Tadahiro MITSUHASHI,安達 弘幸,Hiroyuki ADACHI,山本 智,Satoshi YAMAMOTO,末園 暢一,Nobuichi SUEZONO
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Gel Immersion Technique Phased Array UT SAFT Ultrasonic
Inspection technique for complex surface profiles has been required in order to ensure the reliable operation and high operating rate of nuclear power plants, because many parts due to inspection have complex geometry. We have developed Pha sed Array (PA) ultrasonic testing with immersion technique which suitable to complex geometry. In this paper, we developed precise inspection technique for curvature surface profile such as a nozzle of pressure vessel. For curved surface pro file, Synthesis Aperture Foc...
英字タイトル:
Development of Phased Array Inspection Technique for Nozzle Pipes with Curved Surface
英字タイトル:
Development of Phased Array Inspection Technique for Nozzle Pipes with Curved Surface
第10回
曲面形状に対応するビーム制御方式フェーズドアレイ 超音波探傷技術の検証および試験適用
著者:
山本 摂,Setsu YAMAMOTO,三浦 崇広,Takahiro MIURA,千星 淳,Jun SEMBOSHI,落合 誠,Makoto OCHIAI,三橋 忠浩,Tadahiro MITSUHASHI,安達 弘幸,Hiroyuki ADACHI,山本 智,Satoshi YAMAMOTO
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Gel Immersion Technique Phased Array UT SAFT Ultrasonic Testing
山本 摂,Setsu YAMAMOTO,三浦 崇広,Takahiro MIURA,千星 淳,Jun SEMBOSHI,落合 誠,Makoto OCHIAI,三橋 忠浩,Tadahiro MITSUHASHI,安達 弘幸,Hiroyuki ADACHI,山本 智,Satoshi YAMAMOTO
発刊日:
公開日:
キーワードタグ:
Gel Immersion Technique Phased Array UT SAFT Ultrasonic Testing
Phased Array Ultrasonic Testing (PAUT) techniques for complex geometries are greatly progressing. We developed an immersion PAUT which is suitable for complex surface profiles such as nozzles and deformed welded areas. Furthermore, we have developed a shape adaptive beam steering technique for 3D complex surface structures with conventional array probe and flexible coupling gel which makes the immersion beam forming technique usable under dry conditions. This system consists of 3 steps. Step1 is surfac...
英字タイトル:
Verification and Application of Beam Steering Phased Array UT Technique for Complex Structures
英字タイトル:
Verification and Application of Beam Steering Phased Array UT Technique for Complex Structures