Weatherability improvement of strain imaging sheet to use in real field for infrastructure inspection technology

Hiroshi Fudouzi; Koichi Tsuchiya; Shin‑ichi Todoroki; Tsuyoshi Hyakutake; Hiroyuki Nitta; Yoshikazu Tanaka; Takao Ohya; Michiharu Arifuku

doi:10.1117/12.2513036

27 March 2019 Weatherability improvement of strain imaging sheet to use in real field for infrastructure inspection technology

Hiroshi Fudouzi, Koichi Tsuchiya , Shin‑ichi Todoroki , Tsuyoshi Hyakutake , Hiroyuki Nitta , Yoshikazu Tanaka , Takao Ohya, Michiharu Arifuku

Author Affiliations +

Proceedings Volume 10970, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019; 1097016 (2019) https://doi.org/10.1117/12.2513036
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

We have been developing smart photonic coating for structural materials to visualize strain mapping on steel or aluminum and to detect cracks on concrete. In the technology, strain imaging sheet made of colloidal photonic crystal film coated on a polyethylene terephthalate sheet. The strain imaging sheets change structural color by mechanical deformation. Now we have been testing smart photonic coating for real concreate bridges One of the key issues is the durability of the sheet for long-term use at the outfield site. In outdoor exposure test and in laboratory accelerated exposure test, polystyrene particles in the colloidal photonic crystal film were damaged and lost the structural color. To protect the deteriorating, top coat layer containing ultraviolet absorber was effective to reduce the damage of the colloidal photonic crystal film.

Conference Presentation

Citation Download Citation

Hiroshi Fudouzi, Koichi Tsuchiya , Shin‑ichi Todoroki , Tsuyoshi Hyakutake , Hiroyuki Nitta , Yoshikazu Tanaka , Takao Ohya, and Michiharu Arifuku "Weatherability improvement of strain imaging sheet to use in real field for infrastructure inspection technology", Proc. SPIE 10970, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019, 1097016 (27 March 2019); https://doi.org/10.1117/12.2513036

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