Development of Real-time Crack Monitoring System Based on Non-contact Measurement of Displacement Field

• Project/Area Number: 21560102
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Ritsumeikan University
• Principal Investigator: KUSAKA Takayuki 立命館大学, 理工学部, 教授 (10309099)
• Co-Investigator(Kenkyū-buntansha): SAKANE Masao 立命館大学, 理工学部, 教授 (20111130) ; NOMURA Yasutoshi 立命館大学, 理工学部, 助教 (20372667)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 損傷力学 / ヘルスモニタリング / 画像処理 / き裂 / 画像相関法 / 破壊力学 / 応力拡大係数

Research Abstract

Recently, structural health monitoring systems for infrastructures have attracted the attention of many researchers. In this study, a novel health monitoring system based on non-contact measurement of displacement field has focused on as a crack detection system for concrete structures. The results suggested that the proposed system could precisely evaluate the initiation and propagation of cracks occurring near the surface of the structures.

Research Products

• [Journal Article] 応答アトラクタの交差予測に基づく構造異常診断法の開発とBaseline-less型への適用可能性調査 (2011)
  • Author(s): 野村泰稔, 日下貴之, 森本大貴
  • Journal Title: 構造物の安全性および信頼性 Volume: 7 Pages: 230-235
  • Peer Reviewed
• [Journal Article] カオス信号入力に基づくBaseline-less型構造異常診断法の基礎的研究 (2010)
  • Author(s): 野村泰稔, 中津功一朗, 古田均, 日下貴之
  • Journal Title: 応用力学論文集 Volume: 13 Pages: 977-984
  • Peer Reviewed
• [Presentation] Debonding Detection System for CFRP-reinforced Concrete Structure Based on Evaluations of Elastic Wave Propagation (2011)
  • Author(s): Kusaka, T., Nomura, Y., Nakamura, T., Ito, S.
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011 (ATEM'11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-20
• [Presentation] Real-time Crack Monitoring System in Concrete Structures Using Non-contact Displacement Measurements (2011)
  • Author(s): Kusaka, T., Nomura, Y., Sakamoto, T., Fujii, T.
  • Organizer: International Conference on Advanced Technology in Experimental Mechanics 2011 (ATEM'11)
  • Place of Presentation: 神戸国際会議場(兵庫県)
  • Year and Date: 2011-09-20
• [Presentation] Crack Growth Monitoring System for Concrete Structures Based on Non-contact Displacement Measurements (2011)
  • Author(s): Kusaka, T., Nomura, Y., Sakamoto, T., Fujii, T.
  • Organizer: 8th International Workshop on Structural Health Monitoring (IWSHM-8)
  • Place of Presentation: パロアルト(米国)
  • Year and Date: 2011-09-14
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂進展モニタリング (2011)
  • Author(s): 藤井俊史, 日下貴之, 野村泰稔
  • Organizer: 第42回応力・ひずみ測定シンポジウム
  • Place of Presentation: 大田区産業プラザ(東京)
  • Year and Date: 2011-01-20
• [Presentation] 応答アトラクタの交差予測に基づく構造異常診断法の開発とBaseline-less型への適用可能性調査 (2011)
  • Author(s): 野村泰稔, 日下貴之, 森本大貴
  • Organizer: 第7回構造物の安全性・信頼性に関する国内シンポジウム
  • Place of Presentation: 日本学術会議(東京都)
• [Presentation] Real-time Crack Monitoring System in Concrete Structures Using Non-contact Displacement Measurements (2011)
  • Author(s): Kusaka, T., Nomura, Y., Sakamoto, T., Fujii, T.
  • Organizer: Proceedings of the International Conference on Advanced Technology in Experimental Mechanics 2011
  • Place of Presentation: Kobe, Japan
• [Presentation] Debonding Detection System for CFRP-reinforced Concrete Structure Based on Evaluations of Elastic Wave Propagation (2011)
  • Author(s): Kusaka, T., Nomura, Y., Nakamura, T., Ito, S.
  • Organizer: Proceedings of the International Conference on Advanced Technology in Experimental Mechanics 2011
  • Place of Presentation: Kobe, Japan
• [Presentation] Crack Growth Monitoring System for Concrete Structures Based on Non-contact Displacement Measurements (2011)
  • Author(s): Kusaka, T., Nomura, Y., Sakamoto, T., Fujii, T.
  • Organizer: Structural Health Monitoring 2011
  • Place of Presentation: Stanford, USA
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂進展モニタリング (2011)
  • Author(s): 藤井俊史, 日下貴之, 野村泰稔
  • Organizer: 第42回応力・ひずみ測定シンポジウム
  • Place of Presentation: 大田区産業プラザ(東京都)
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂検出システム (2010)
  • Author(s): 坂本智寛, 日下貴之, 野村泰稔
  • Organizer: 第54回日本学術会議材料工学連合講演会
  • Place of Presentation: ハートピア京都(京都)
  • Year and Date: 2010-10-26
• [Presentation] カオス信号入力に基づくBaseline-less型構造異常診断法の基礎的研究 (2010)
  • Author(s): 野村泰稔, 中津功一朗, 古田均, 日下貴之
  • Organizer: 第13回応用力学シンポジウム
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 2010-08-31
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂モニタリング (2010)
  • Author(s): 西山慎一, 日下貴之, 野村泰稔, 中村政克, 坂本智寛
  • Organizer: 日本機械学会関西支部85期定時総会講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2010-03-16
• [Presentation] PZT素子を用いたCFRP補強コンクリートの剥離モニタリング (2010)
  • Author(s): 中村豪志, 日下貴之, 大前確, 野村泰稔
  • Organizer: 第54回日本学術会議材料工学連合講演会
  • Place of Presentation: ハートピア京都(京都府)
• [Presentation] 非接触変位場計測に基づくコンクリート構造物のき裂検出システム (2010)
  • Author(s): 坂本智寛, 日下貴之, 野村泰稔
  • Organizer: 第54回日本学術会議材料工学連合講演会
  • Place of Presentation: ハートピア京都(京都府)
• [Presentation] Baseline-Free Structural Damage Detection Using Chaotic Excitation (2009)
  • Author(s): Nomura, Y., Furuta, H., Kusaka, T.
  • Organizer: 7th International Workshop on Structural Health Monitoring
  • Place of Presentation: スタンフォード大学(米国)
  • Year and Date: 2009-09-10
• [Presentation] Baseline-Free Structural Damage Detection Using Chaotic Excitation (2009)
  • Author(s): Nomura, Y., Furuta, H., Kusaka, T.
  • Organizer: Structural Health Monitoring 2009
  • Place of Presentation: Stanford, USA