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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, Adhesion evaluation, Laser ultrasonics, Air-coupled ultrasonic, Non-contact measurements, Sensor, Solid mechanics, Elasticity

NEWSV’…ξ•ρ

2023.11.13-15
Graduate school students presented at The 44th Symposium on UltraSonic Electronics (USE2023).
EPhased array imaging with a stacked plate buffer, Mingqian Xia, Takahiro Hayashi, and Naoki Mori
EUltrasonic wave propagation in a sphere sandwiched between blocks, Daichi Tsunaki, Akira Sasaki, Naoki Mori, and Takahiro Hayashi
EDetection of subsurface defects using laser ultrasonics for process monitoring of metal additive manufacturing, Atsushi Yamasaki, Takahiro Hayashi, and Naoki Mori
E
Numerical analysis of elastic wave resonator using deformation of tube, Akira Sasaki, Naoki Mori, and Takahiro Hayashi
ECuring monitoring and influence on the adhesive property by ultrasonic vibration treatment of adhesive layer, Toru Hakkaku, Naoki Mori, and Takahiro Hayashi
2023.9.20
Graduate school students presented at 2023 International Congress on Ultrasonics (ICU).
EDefect imaging using a phased array transducer with a stacked-plate buffer, Mingqian XiaCTakahiro HayashiCNaoki Mori
EIn-process defect detection in selective laser melting using scanning laser source technique, Atsushi YamasakiCTakahiro HayashiCNaoki Mori
2023.9.8
Mr. Takaaki Fukuchi (M2 at that time), Prof. Takahiro Hayashi, and Dr. Naoki Mori received the Best Paper Award of USE2022. This award was selected as the best of all papers published in the Japanese Journal of Applied Physics after USE2022. The selected paper is Ultrasonic focusing using a stacked thin-plate region, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori, Japanese Journal of Applied Physics 2023, https://doi.org/10.35848/1347-4065/acb361
USE2023HP.
2023.8.1
Dr. Mori was promoted to lecturer.
2023.7.14
Dr. Mori (Assist. Prof.) made a presentation at the 7th International Conference on Structural Adhesive Bonding 2023 (AB2023). Title: Shear bond stiffness evaluation of adhesive lap joints based on the guided wave transmission/reflection spectral interference, Naoki Mori, Junya Toyota, Daichi Wakabayashi, Takahiro Hayashi
2023.6.6
Prof. Takahiro Hayashi received the Best Paper Award in the 70th anniversary of the Japan Society for Non-Destructive Inspection. This award was selected as the best of all papers published in the Journal of the Japanese Society for Non-Destructive Inspection over the past 10 years. Professor Hayashi received this prize for his paper "Numerical Analysis of Harmonic Generation at Metal Block-Thin Film Interface Using Separation Spring Model" (co-authored with Mr. Atsushi Tatsumi, currently IHI Corporation (at that time, a graduate student in Kyoto University)).
2023.5.29
Prof. Francesco Simonetti from University of Cincinnati is staying with us in the program of JSPS invitational Fellowships for Research in Japan (short-term).
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).
EResonance and absorption of ultrasonic waves in asymmetric viscoelastic-elastic laminates, Naoki Mori, Takahiro Hayashi
EControl of guided wave propagation with layered path in a plate, Mingquian Xia, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori
EUltrasonic focusing by designing a stacked thin plate region, Takaaki Fukuchi, Takahiro Hayashi, Naoki Mori
EEnergy trapping of in-plane vibration in a hollow cylinder with a circumferential groove on the inner surface, Yuma Iiboshi, Takahiro Hayashi, Naoki Mori
EEnergy trapping of in-plane vibration in a hollow cylinder with a circumferential groove on the inner surface, Yuma Iiboshi, Takahiro Hayashi, Naoki Mori
EThree-dimensional analysis of reflection characteristics of Lamb waves at an adhesively bonded stiffener in a plate, Junya Toyota, Naoki Mori, Takahiro Hayashi
EThree-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CTakaaki 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C Takahiro Hayashi
2020.11.27
Mr. Akito Iwata (M1) gave a poster presentation in USE2020 (webinarj. Energy Trapping of Circumferential SH Wave at a Groove in a PipeCAkito 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 gEmerging Technologies of Advanced Ultrasonic Measurementh [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

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Hayashi Lab. Osaka Univ.

§565-0871
2-1 Yamadaoka, Suita, Osaka
Hayashi Lab.
Dept. of. Mechanical Engineering
Osaka Univ.