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Feasibility Study on Deterministic Failure Prediction by AE

Research Project

Project/Area Number 15K14023
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionKyoto University (2016)
Kumamoto University (2015)

Principal Investigator

OHTSU Masayasu  京都大学, インフラシステムマネジメント研究拠点ユニット, 研究員 (80109016)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsアコースティック・エミッション / コンクリート非破壊検査 / 破壊予知 / インフラドック / 非破壊検査 / アコースティックエミッション / コンクリート構造
Outline of Final Research Achievements

Based on the parameter analysis of Acoustic Emission (AE), the decrease in the average frequency and the increase in RA value are confirmed to be applicable to the failure prediction. With relation to an application of the earthquake prediction, diagonal-shear failure in a reinforced concrete beam (RC) similar to fault motion is studied, applying the SiGMA analysis. Thus, nucleation of tensile cracks in the early stage of shear failure is clarified. Crack classification by AE parameter analysis is applied to concrete structures under traffic loads. It is found that the time for repair could be estimated quantitatively by periodical measurements. Associated with a deterministic prediction of failure, an infra-dock is proposed for the prognosis of concrete structures in service.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (13 results)

All 2017 2016 2015

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Book (1 results)

  • [Journal Article] Evaluation of Crack Damage in Freeze-Thawed Concrete using AE and X-Ray CT Image2017

    • Author(s)
      T. Suzuki, T. Shiotani and M. Ohtsu
    • Journal Title

      Construction and Building Materials

      Volume: 136 Pages: 619-626

    • DOI

      10.1016/j.conbuildmat.2016.09.013

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Round^-Robin Tests on Damage Evaluation of Concrete based on the Concept of AE Rates2016

    • Author(s)
      A. Ishibashi, K. matsuyama, N. Alver, T. Suzuki and M. Ohtsu
    • Journal Title

      Materials and Structures

      Volume: 49(7) Pages: 2627-2635

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elastic Wave Method for NDE in Concrete based on Generalized Theory of AE2016

    • Author(s)
      M. Ohtsu
    • Journal Title

      Construction and Building Materials

      Volume: 122 Pages: 845-854

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 弾性波動を利用した計測原理と品質評価2015

    • Author(s)
      大津政康
    • Journal Title

      非破壊検査

      Volume: 64 Pages: 106-112

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] 電気化学的手法の逆解析(PiBEM)とAE計測を用いたハイブリッド鉄筋腐食評価の検証実験2015

    • Author(s)
      大津政康,川崎裕太郎
    • Journal Title

      コンクリート構造物の補修,補強,アップグレード論文報告集

      Volume: 15 Pages: 65-70

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] AE法によるコンクリート破壊過程予測に関する考察2015

    • Author(s)
      佐藤京介,大津政康
    • Journal Title

      コンクリート構造物の補修,補強,アップグレード論文報告集

      Volume: 15 Pages: 229-234

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] コンクリート構造物のためのインフラドック2015

    • Author(s)
      大津政康
    • Journal Title

      コンクリート工学

      Volume: 53 Pages: 1046-1050

    • NAID

      130005171427

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Basics and Applications of NDE based on Elastodynamics toward Infradock for Concrete Structures2015

    • Author(s)
      M. Ohtsu
    • Journal Title

      Proc. Emerging Technologies in NDT

      Volume: 4

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] Development of AE Measurement in Concrete and Evolutional Applications2016

    • Author(s)
      M. Ohtsu
    • Organizer
      8th Int. Conf. on AE
    • Place of Presentation
      Kyoto
    • Year and Date
      2016-12-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Visualized NDE for Internal Defects in Concrete Structuires by SiGMA and SIBIE2016

    • Author(s)
      M. Ohtsu
    • Organizer
      Gordon Research Conference on Advanced Materials for Sustainable Infrastructure Development
    • Place of Presentation
      Hong Kong
    • Year and Date
      2016-08-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] AE法によるPC倉宇土注入評価に関する考察2015

    • Author(s)
      友田祐一,大津政康,山田雅彦,徳光 卓
    • Organizer
      第20回AE総合コンファレンス
    • Place of Presentation
      名古屋
    • Year and Date
      2015-11-19
    • Related Report
      2015 Research-status Report
  • [Presentation] 鉛フリーAEセンサーを用いた既設PC橋のAEモニタリングによる疲労評価2015

    • Author(s)
      王 瑞平,菊池直人,粟津浩一,樋口哲也,大津政康
    • Organizer
      第20回AE総合コンファレンス
    • Place of Presentation
      名古屋
    • Year and Date
      2015-11-19
    • Related Report
      2015 Research-status Report
  • [Book] Innovative AE and NDT Techniques for On-Site Measurement of Concrete and Masonry Structures2016

    • Author(s)
      M. Ohtsu
    • Total Pages
      176
    • Publisher
      Springer
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2018-03-22  

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