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Vol.11 No.1previous AASP19(150-151-152-153-154-155)-AA156 NT93

Academic Articles
Regular Paper Vol.11 No.1 (2019) p.27 - p.33

Social infrastructural diagnosis by hammering inspection with AE sensor


Takashi MATSUNAGA1, Ryota OGAWA1, Mitsuyuki SAGISAKA1, and Hiroaki FUJIYOSHI1, Yoshihiro ISOBE1,*

1 Nuclear Fuel Industries, Ltd., 950 Asashiro-Nishi, 1-Chome, Kumatori-Cho, Sennan-Gun, Osaka 590-0481, Japan
Digital hammering inspection system with AE (Acoustic Emission) sensor has been developed and the effects of state, stiffness, etc. on the natural frequency of metal and concrete objects to be inspected were evaluated in terms of improper installations and age-related degradations. The system has been widely applied to social infrastructural diagnosis including expressways (West Nippon Expressway Company Limited, NEXCO-WEST), nuclear power plants (ex. Chubu Electric Power Co., Inc.), reprocessing plant of spent nuclear fuel (Japan Nuclear Fuel Limited) and a successful on-site trial of a new technology of i-Construction led by MLIT (the Ministry of Land, Infrastructure, Transport and Tourism).
social infrastructure, hammering inspection, AE sensor, expressway, nuclear power plant, i-Construction
Full Paper: PDF EJAM Vol. 11 No. 1 pp.27-33 "Social infrastructural diagnosis by hammering inspection with AE sensor"

Article Information
Article history:
Received 24 Octorber 2018
Accepted 15 May 2019