Tomoko Fukuyama

Associate Professor,College of Science and Engineering, Ritsumeikan University*Profile is at the time of the award.

2020Inamori Research GrantsScience & Engineering

Research topics
Nondestructive measurements of concrete stiffness using piezoelectric effect
Reinforced concrete is widely used as a structural material. In recent years, however, aged deterioration of reinforced concrete is a major problem and affects mechanical performance of structures. Reinforced concrete contains not only cement but also various materials with different sizes, such as sand, gravel, and rebar, making it difficult to directly link “deterioration of each material” to “mechanical performance as a structure.” In this research, we focus on piezoelectric effect of cementitious materials and develop a technology to estimate residual life of structures by experimentally grasping the relationship between material stiffness and piezoelectric behavior, which correlate to degradation.


I am very honored to receive Inamori Research Grant with a long history. The research aims to contribute to deterioration diagnosis of reinforced concrete, which is indispensable for prolonging lifetime of infrastructures. Since the piezoelectric effect is a phenomenon that converts mechanical energy applied to material into electrical energy, it is possible that concrete itself can be treated as sensor. Although the research has just started, some exciting results have been obtained from preliminary experiments, and I am looking forward to future developments.

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