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Naoya Kasai
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Proceedings Papers

Detection of a Surface Flaw Using Differential Signals of MI Sensors With the Residual Magnetization Method

Naoya Kasai, Keisuke Miura
Proc. ASME. PVP2012, Volume 5: High-Pressure Technology; ASME NDE Division, 241-244, July 15–19, 2012
Paper No: PVP2012-78294
DOI: https://doi.org/10.1115/PVP2012-78294
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Topics: Magnetization, Sensors, Signals, Wavelets, Leakage, Magnetic fields, Metals, Noise (Sound), Signal processing
Proceedings Papers

Low Cycle Fatigue Behaviors of Elbow With Local Wall Thinning Under Combined Bending and Internal Pressure

Koji Takahashi, Kazuya Matsuo, Kyohei Sato, Kotoji Ando, Yoshio Urabe, Naoya Kasai
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 901-907, July 17–21, 2011
Paper No: PVP2011-57322
DOI: https://doi.org/10.1115/PVP2011-57322
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Topics: Low cycle fatigue, Pressure, Fracture (Materials), Corrosion, Displacement, Erosion, Finite element methods, Metals
Proceedings Papers

Detection of the Crack Initiation by Means of AE Method Under Low Cycle Fatigue of Elbow Pipe Having Local Wall Thinning

Naoya Kasai, Kotoji Ando, Maki Nishio, Yoshio Urabe, Koji Takahashi
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 5, 229-232, July 18–22, 2010
Paper No: PVP2010-25426
DOI: https://doi.org/10.1115/PVP2010-25426
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Topics: Fracture (Materials), Low cycle fatigue, Pipes, Signals, Corrosion, Displacement, Flow (Dynamics), Sensors
Proceedings Papers

Development of Fragility Curve Considering Aging of Oil Storage Tanks and Its Application to Risk Assessment of Industrial Complexes

Yoshihisa Murakami, Toshiro Yamase, Shinsaku Zama, Yoshihiro Hirokawa, Haruki Nishi, Minoru Yamada, Akiko Hirano, Naoya Kasai
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 1, 15-18, July 18–22, 2010
Paper No: PVP2010-25508
DOI: https://doi.org/10.1115/PVP2010-25508
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Topics: Risk assessment, Storage tanks, Shells, Buckling, Disasters, Earthquakes, Emergency management, Fire, Construction, Corrosion
Proceedings Papers

Evaluation of the Corrosion Rate for Acidic Bottom Plates of an Aboveground Oil Tank by the AE Method

Naoya Kasai, So Soon Park, Kentaro Utatsu, Kazuyoshi Sekine, Shigeo Kitsukawa, Tsukasa Mitsuta
Proc. ASME. PVP2008, Volume 5: High Pressure Technology; Nondestructive Evaluation Division; Student Paper Competition, 179-182, July 27–31, 2008
Paper No: PVP2008-61517
DOI: https://doi.org/10.1115/PVP2008-61517
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Topics: Corrosion, Plates (structures), Signals, Polarization (Electricity), Polarization (Light), Polarization (Waves), Accidents, Damage, Frequency response, Ions