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Umeno Lab
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The lab uncovers the strength and fracture behavior of materials by studying how individual atoms move.
AboutAbout the lab
Designing the future of materials, starting from the atomic world.
Umeno Lab studies the strength and fracture of materials by examining the motion of individual atoms.
Using first-principles calculations, molecular dynamics, and AI, the lab carries out multiscale analysis that connects the properties of materials at the nanoscale with those at visible, macroscopic sizes.
The lab aims to design strong, high-performance materials that will support the society of the future, in fields such as energy, space, and electronic devices.
Although simulation is the core of the lab's work, no prior knowledge of programming or similar skills is required.
Key terms
- First-principles calculation
- A method that calculates the behavior of atoms and electrons from the fundamental laws of quantum mechanics, without relying on experimental values
- Molecular dynamics
- A method that uses computers to calculate the motion of individual atoms and molecules in order to study the properties and phenomena of materials
- Fatigue
- A phenomenon in which small cracks form and grow in a material under repeated loading, until the material eventually fails
NewsLab news
Paper by Prof. Umeno and colleagues wins the Paper Award of the Technical Association of Refractories, Japan
A doctoral student wins a poster award at an academic conference
Paper by Prof. Umeno and colleagues wins the Paper Award of the Society of Materials Science, Japan
ResearchResearch themes
Using computational science such as first-principles calculations and molecular dynamics, the lab uncovers the fundamental mechanisms behind the strength, fracture, and wear of materials. Through multiscale analysis that links atomic motion at the nano and micro scales with the macroscopic properties of materials, the lab also works on applying its findings to real-world materials design.
*Illustrative imageUnderstanding how metals fatigue
For fatigue in metals, where cracks form under repeated loading, the lab has developed a new multiscale modeling method that incorporates machine learning. It is used to investigate how dislocation structures, which precede crack formation, develop.
*Illustrative imageHow crystals break, seen from the atoms
Using molecular dynamics, the lab clarifies at the atomic level how cracks propagate. It shows that even in silicon carbide, which is regarded as hard and brittle, cleavage and slip along crystal planes can appear depending on slight differences in conditions.
*Illustrative imageExamining fuel cell electrodes at the atomic scale
For the fuel electrode of solid oxide fuel cells, which offer high energy efficiency, the lab uses first-principles calculations and molecular dynamics to study the sintering of particles at high temperatures and the mechanisms of chemical reactions at interfaces.
*Illustrative imageThe strength of resins and composite materials
For plastic-based composite materials used in automobiles and aircraft, the lab simulates the deformation and fracture of polymers with molecular models, and applies the resulting material properties to larger-scale analysis.
MembersFaculty
The members of Umeno Lab consist of faculty, senior technical specialists, doctoral and master's students, joint researchers from industry and other organizations, and special research students from other graduate schools.As of 2026
- ProfessorYoshitaka UmenoPublications ↗
- Assistant ProfessorLEELAPRACHAKUL TatchaphonPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “SEM-image-showing-crack-propagation-of-TaCCNTsSiC” Qiaoyun Xie, Sylvanus N. Wosu / CC BY 4.0 (cropped)
- Understanding how metals fatigue: “Pedalarm Bruch” Lokilech / CC BY-SA 3.0 (cropped)
- How crystals break, seen from the atoms: “Silicon carbid - topview” Ra'ike / CC BY-SA 3.0 (cropped)
- Examining fuel cell electrodes at the atomic scale: “HITEP SOFC” Jakub.kupecki / CC BY-SA 4.0 (cropped)
- The strength of resins and composite materials: “Поликарбонат” Miroslav Bendik / CC BY-SA 3.0 (cropped)
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- Related lab (栃木研究室): “Ernst Ruska Electron Microscope - Deutsches Museum - Munich-edit” J Brew, uploaded on the English-speaking Wikipedia by en:User:Hat'nCoat. / CC BY-SA 3.0 (cropped)
- Related lab (趙研究室): “Quadrixette” HaSe / CC BY-SA 4.0 (cropped)
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