最近の出来事 News & Topics
2024/10/1
東京工業大学は東京医科歯科大学と統合し，東京科学大学になりました．NEW
Tokyo Institute of Technology merged with Tokyo Medical and Dental University to form Institute of Science Tokyo.
2024/9/13
丸山が東工大挑戦的研究賞を受賞しました．NEW
Maruyama received Tokyo Tech Challenging Research Award.
2024/5/18
松尾太聖さん（愛媛大学，2023年3月修士課程修了），中畑和之 教授（愛媛大学）と共著の論文がComputational Mechanicsに採択されました．NEW
An article co-authored with Mr. Taisei Matsuo and Prof. Kazuyuki Nakahata (Ehime University) has been accepted for publication in Computational Mechanics.
2024/4/10
M1の学生1名，B4の学生1名が配属されました．
One M1 student and one B4 student have joined Maruyama Lab.
2024/3/26
生子花（B4）と山田純花（B4）が木村賞を受賞しました．
Hana Shoji (B4) and Sumika Yamada (B4) received Kimura Award.
2024/3/23
神田昂亮 博士（電力中央研究所）と共著の論文がEngineering Analysis with Boundary Elementsに採択されました．
An article co-authored with Dr. Kosuke Kanda (Central Research Institute of Electric Power Industry) has been accepted for publication in Engineering Analysis with Boundary Elements.
2023/7/17
神田昂亮 博士（電力中央研究所）と共著の論文がInternational Journal of Solids and Structuresに採択されました．
An article co-authored with Dr. Kosuke Kanda (Central Research Institute of Electric Power Industry) has been accepted for publication in International Journal of Solids and Structures.
2023/5/16
研究室HPの公開を始めました．
We have started to open the website of our Lab.
2023/4/11
B4の学生2名が配属されました．
Two B4 students have joined Maruyama Lab.
2023/4/1
丸山が東京工業大学 環境・社会理工学院 土木・環境工学系に着任し，丸山研究室がスタートしました．
Maruyama Lab. started.
研究 Research
丸山研究室では，構造物や機械の健全性評価技術の開発・発展を目的として，（超）音波を用いた非破壊評価・モニタリング技術について研究を行っています．
主に，固体中での（超）音波の伝搬や散乱現象の解明や適切な利用のため，数値シミュレーションを活用したアプローチを行っています．
Our research objectives are to develop and advance evaluation techniques for the integrity of structures and machinery.
To achieve this, we use numerical methods to elucidate and appropriately use ultrasonic wave propagation and scattering in solids.
研究内容の紹介（Introduction of Research Topics）
学位論文テーマ（Research Topics of Thesis）
メンバー Members
丸山研究室は2023年4月からスタートしたため，メンバーはまだ少ないですがこれから盛り上げていきたいと思っています．
The number of members is small because Maruyama Lab. started in April 2023.
We hope to grow in the future.
メンバーリスト Member List
准教授
Associate Professor |
丸山 泰蔵
Taizo MARUYAMA
|
|
| M1 |
生子 花
Hana SHOJI |
留学中（École nationale des ponts et chaussées）
In studying abroad |
| M1 |
山田 純花
Sumika YAMADA |
|
| M1 |
Yan YANG |
|
| B4 |
豊島 直生
Naoki TOYOSHIMA |
|
業績 Publications
近年，国際誌に発表した業績のみをここに載せています．
その他も含めた詳細はreseachmapを参照してください．
下線は丸山研究室メンバー，青色は丸山の指導学生を示しています．
Recent publications in international journals are listed here, and further details and other achievements can be found on
researchmap.
The underlined text indicates a member of Maruyama Lab., and the blue color indicates a student directed by Maruyama.
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T. Maruyama, T. Matsuo, and K. Nakahata:
Numerical study on guided-wave reflection and transmission at water pipe joint using hybrid finite element method,
Computational Mechanics (2024).
DOI: 10.1007/s00466-024-02505-0
NEW
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T. Maruyama, K. Kanda, and S. Yamada:
Three-dimensional hybrid SAFE-BEM for elastic guided-wave scattering in a plate with finite width,
Engineering Analysis with Boundary Elements 163, pp.426-435 (2024).
DOI: 10.1016/j.enganabound.2024.03.027
NEW
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T. Maruyama and K. Kanda:
Derivation of an in-plane amplitude equation and its paraxial approximation for elastic guided waves in plates,
International Journal of Solids and Structures 281, No.112420 (2023).
DOI: 10.1016/j.ijsolstr.2023.112420
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K. Kanda and T. Maruyama:
Theoretical analysis of forced Lamb waves using the method of multiple scales and Green's function method,
Acta Mechanica 234, pp.3533-3546 (2023).
DOI: 10.1007/s00707-023-03573-8
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D. Kumar, D. Singh, S. K. Tomar, S. Hirose, T. Saitoh, A. Furukawa, and T. Maruyama:
Reflection of plane waves from the stress-free boundary of a nonlocal elastic solid half-space containing double porosity,
Archive of Applied Mechanics 93, pp.2145-2173 (2023).
DOI: 10.1007/s00419-023-02377-5
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K. Kanda and T. Maruyama:
Theoretical analysis of the dispersion of Lamb waves forming a wave packet of finite-bandwidth using the method of multiple scales,
International Journal of Solids and Structures 234-235, No.111268 (2022).
DOI: 10.1016/j.ijsolstr.2021.111268
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K. Nakahata, T. Maruyama, and S. Hirose:
Application of a Particle Filter to Flaw Identification for Ultrasonic Nondestructive Evaluation: Assimilation of Simulated and Measured Data,
Journal of Nondestructive Evaluation 40, No.34 (2021).
DOI: 10.1007/s10921-021-00765-x
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T. Maruyama:
Harmonic balance-boundary element and continuation methods for steady-state wave scattering by interior and surface-breaking cracks with contact acoustic nonlinearity,
International Journal of Solids and Structures 210-211, pp.310-324 (2021).
DOI: 10.1016/j.ijsolstr.2020.11.007
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T. Touhei and T. Maruyama:
Pseudo-projection approach to reconstruct locations of point-like scatterers characterized by Lame parameters and mass densities in an elastic half-space,
International Journal of Solids and Structures 169, pp.187-204 (2019).
DOI: 10.1016/j.ijsolstr.2019.04.019
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T. Maruyama and T. Touhei:
Steady-state anti-plane shear wave scattering by a crack with friction,
Journal of the Acoustical Society of America 143, pp.3545-3556 (2019).
DOI: 10.1121/1.5042163
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T. Maruyama T. Saitoh, and S. Hirose:
Numerical study on sub-harmonic generation due to interior and surface breaking cracks with contact boundary conditions using time-domain boundary element method,
International Journal of Solids and Structures 126-127, pp.74-89 (2017).
DOI: 10.1016/j.ijsolstr.2017.07.029
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T. Maruyama, T. Saitoh, T. Q. Bui, and S. Hirose:
Transient elastic wave analysis of 3-D large-scale cavities by fast multipole BEM using implicit Runge-Kutta convolution quadrature,
Computer Methods in Applied Mechanics and Engineering 303, pp.231-259 (2016).
DOI: 10.1016/j.cma.2016.02.002
所属希望者へ To Prospective Members
丸山研究室では構造物の維持管理のための非破壊検査・構造物ヘルスモニタリングに関わる研究をしています．具体的な研究トピックとしては理論的な内容が多く，弾性波動（固体中を伝搬する波）の数値・理論解析を主に行っています．そのため，研究活動では，数学や物理，プログラミングを用います．超音波の計測実験を行う場合でも物理的な考察に重点を置いているため，数学，物理，プログラミングを用いることとなります．プログラミング言語は主にFortranを用いています．
学士特定課題研究（卒論）のテーマについては，基本的に教員からいくつかテーマを提示して，その中から学生の希望に合わせて選びます．各学生から希望テーマの提案があれば，そちらを実施することも検討します．
興味のある方は下記の連絡先から丸山にメールで連絡ください．
For international students:
Maruyama Lab. research is related to nondestructive evaluation and structural health monitoring for structures. The specific research topics are mainly numerical and theoretical analyses of elastic waves (waves propagating in solids). Therefore, mathematics, physics, and programming are used in our research activities. Even when we work on ultrasonic measurement experiments, we use mathematics, physics, and programming focusing on physical interpretations. The programming language is mainly Fortran in Maruyama Lab.
Please consider IGP(A) and IGP(C) for enrollment (see Science Tokyo webpage).
For postdocs:
Please consider JSPS Postdoctoral Fellowships for Research in Japan (Standard Program).
If you have an interest, please contact me via email.
