Opal crystal film for strain imaging and its application of inspection technology in infrastrcuture

2017 Fiscal Year Final Research Report

• Project/Area Number: 26289139
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: National Institute for Materials Science
• Principal Investigator: Hiroshi Fudouzi 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (20354160)
• Co-Investigator(Kenkyū-buntansha): 田中 義和 広島大学, 工学研究科, 准教授 (00335704) ; 百武 壮 国立研究開発法人土木研究所, 土木研究所(つくば中央研究所), 主任研究員 (30468871)
• Research Collaborator: Todoroki Shin-ichi 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主席研究員 ; Sawada Tsutomu 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 外来研究員 ; Ohya Takao ショーボンド建設, 補修工学研究所, 研究員
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: コロイド結晶 / 構造色 / 歪み可視化 / 歪みゲージ / モニタリング / オパール結晶薄膜 / 社会インフラ / 紫外線劣化

Outline of Final Research Achievements

We have been studying on practical application of strain imaging sheet for simple and low cost social infrastructure health monitoring technology. In this project, we have succeeded in forming a large area of A3 size of colloidal crystal thin film on PET plastic sheet. We also developed a technique to form a coating layer that protects opal thin films from UV irradiation damage. For a practical field use, a strain imaging technology of far field (from a distance of over 20 m) was demonstrated. On the other hand, using the conventional strain gauge as a reference, it was found that there is a linear relationship between the peak shift of strain imaging sheet and measured strain gauge.

Free Research Field

材料化学