ABOUT US

• This laboratory has started with the Japanese new era 'Reiwa'. Our main research topic is ultrasonic nondestructive evaluation for engineering materials.
• Keywords: Ultrasonic, Elastic waves, Non-destructive evaluation, Guided waves, Dispersion curves, Semi-analytical finite element method, Pipe, Resonance, Laser ultrasonics, Air-coupled ultrasonic, Non-contact measurements, Sensor, Solid mechanics, Elasticity

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NEWS新着情報

2023.4.16

A new paper was published online. Energy trapping of circumferential shear horizontal wave in a hollow cylinder, Yuma Iiboshi, Akito Iwata, Takahiro Hayashi, Naoki Mori, Ultrasonics, Vol. 133, 107044, 2023
https://doi.org/10.1016/j.ultras.2023.107044

2023.1.16

A new paper was published online. Ultrasonic focusing using a stacked thin-plate region, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori, Japanese Journal of Applied Physics 2023. This paper has been selected as a "Spotlights" article in JJAP.
https://doi.org/10.35848/1347-4065/acb361

2023.1.12

Mrs. Takako Shintani, a part-time staff member, has retired and Mrs. Yukimi Fujii has joined as a new member.

2022.12.19

A new paper was published online. Ultrasonic interference and critical attenuation in metal-plastic bilayer laminates, Naoki Mori, Takahiro Hayashi, Journal of Sound and Vibration
https://doi.org/10.1016/j.jsv.2022.117531

2022.11.10

Dr. Anowarul Habib visited us and gave a lecture on "Acoustic waves: Structural health monitoring, Imaging, and applications". Photo

2022.11.7-9

Lab. members, Mori (Assistant Professor), Xia (D1), Fukuchi (M2), Iiboshi (M2), Toyota (M1), Tsunaki (M1) made presentations at the 43rd Symposium on UltraSonic Electronic (USE2022).
・Resonance and absorption of ultrasonic waves in asymmetric viscoelastic-elastic laminates, Naoki Mori, Takahiro Hayashi
・Control of guided wave propagation with layered path in a plate, Mingquian Xia, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori
・Ultrasonic focusing by designing a stacked thin plate region, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori
・Energy trapping of in-plane vibration in a hollow cylinder with a circumferential groove on the inner surface, Yuma Iiboshi, Takahiro Hayashi, Naoki Mori
・Energy trapping of in-plane vibration in a hollow cylinder with a circumferential groove on the inner surface, Yuma Iiboshi, Takahiro Hayashi, Naoki Mori
・Three-dimensional analysis of reflection characteristics of Lamb waves at an adhesively bonded stiffener in a plate, Junya Toyota, Naoki Mori, Takahiro Hayashi
・Three-dimensional numerical analysis of ultrasonic propagation behavior in a powder layer between metals, Daichi Tsunaki, Naoki Mori, Takahiro Hayashi.

2022.10.28

A new paper was published online. Abnormal Sound Detection in Pipes Using a Wireless Microphone and Machine Learning, Kotai Notani, Takahiro Hayashi, Naoki Morii, Materials Evaluation, 2022
https://doi.org/10.2320/matertrans.MT-I2022001

2022.6.20

Dr. Li Yang joined our group as a visiting professor from Zhengzhou University, China.

2022.6.9

A new paper was published online. Viscoelastic wave propagation and resonance in a metal-plastic bonded laminate, Naoki Mori, Yusuke Iwata, Takahiro Hayashi, Naoki Matsuda, Mechanics of Advanced Materials and Structures, DOI: 10.1080/15376494.2022.2084191

2022.3.24

A graduation ceremonny was held. Photo

2022.2.16, 18

M2 and B4 students finished final presentations. Photo

2021.12.13

A new paper was published online. Tangential bond stiffness evaluation of adhesive lap joints by spectral interference of the low-frequency A0 Lamb wave, Naoki Mori, Daichi Wakabayashi, Takahiro Hayashi, International Journal of Adhesion and Adhesives, DOI: 10.1016/j.ijadhadh.2021.103071

2021.12.13

A new paper was published online. Numerical analysis of wave propagating in a periodic layered structure, Takaaki Fukuchi, Naoki Mori, Takahiro Hayashi, Japanese Journal of Applied Physics, DOI: 10.35848/1347-4065/ac48cc

2021.10.26

Mr. Takaaki Fukuchi gave a poster presentation in USE2021. Numerical analysis of ultrasonic wave propagating through a thin plate stacked structure，Takaaki Fukuchi, Naoki Mori, Takahiro Hayashi

2021.8.25

A new paper was published online. Numerical analysis of wave propagating in a periodic layered structure, Takaaki Fukuchi, Naoki Mori, Takahiro Hayashi, Japanese Journal of Applied Physics, DOI: 10.35848/1347-4065/ac48cc

2020.12.5

Professor Takahiro Hayashi gave a keynote speech in 2020 International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP2020). Guided wave inspection for pipes， Takahiro Hayashi

2020.11.27

Mr. Akito Iwata (M1) gave a poster presentation in USE2020 (webinar）. Energy Trapping of Circumferential SH Wave at a Groove in a Pipe，Akito Iwata, Takahiro Hayashi, Naoki Mori

2020.11.18

Professor Takahiro Hayashi gave a short talk about Defect imaging from a distance as a panelist in JSNDI Workshop on “Emerging Technologies of Advanced Ultrasonic Measurement” [NDE4.0].

2020.8.26

Oral presentation in QNDE 2020 virtual: Remote defect imaging using a wireless microphone unit with an optical power feeding device, Takahiro Hayashi, Shinichi Morita, and Fumio Fujita

2020.7.31

STUDIES page was updated.

2020.7.17

The first presentation on the projects were held. All students gave a good presentation.

2020.4.13

New undergraduate students joined our lab.

2020.4.1

Dr. Naoki Mori joined the lab as an assistant professor. New master course students also became a lab member.

Past news