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Resource and Energy Processes Lab
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The lab uses computational mechanics to foresee how metal sheets behave during forming, and applies this to energy savings.
AboutAbout the lab
Toward saving resources and energy through computational mechanics.
The Resource and Energy Processes Lab studies the processes of forming materials such as metal sheets, modeling them with computational mechanics and experiments.
In the flow from raw materials to making and using products, saving resources and energy is essential for a sustainable society.
Covering a wide range of time and length scales from micro to macro, the lab works on research from fundamentals to practical applications.
The lab also works on modeling materials that are hard to process in order to make vehicles lighter, and on creating materials that are easier to process.
Key terms
- Metal forming
- Processing in which force is applied to metal to deform it into a permanent shape, making products (e.g., pressing)
- Crystal plasticity model
- A model that calculates the deformation of a whole material from the deformation of each of the small crystals that make up the metal
- Uniform elongation
- The range over which a metal being pulled stretches evenly as a whole, without necking
ResearchResearch themes
The lab works on modeling difficult-to-form materials and improving their formability, which leads to lighter transport equipment, and on creating materials that are easy to process. It combines advanced computational mechanics with experimental techniques.
*Illustrative imagePredicting the deformation of dual-phase steel sheets from crystals
Dual-phase steel sheets of ferrite and martensite, used in automotive parts, get their strength from the properties of each phase and their interaction, but the details are not well understood. The lab builds crystal plasticity models to predict and clarify these properties from the fine microstructure.
*Illustrative imageModeling metals under large stretching
Forming simulations usually model only deformation up to uniform elongation. Because actual forming involves larger deformation beyond that, the lab experimentally investigates the large-deformation behavior of various metal sheets and models it.
*Illustrative imageCrystal plasticity models for aluminum alloy sheets
Aluminum alloys are widely used in car body panels and other parts. The lab builds crystal plasticity models that can predict deformation under various loading conditions, including shear, with high accuracy, and applies them to predicting the ease and limits of press forming.
*Illustrative imageApplication to forming magnesium alloy sheets
Magnesium alloy sheets are light and strong, but they are difficult to form at room temperature. The lab clarifies the deformation of ZX10 magnesium alloy sheets, which have improved room-temperature formability, builds crystal plasticity models, and explores their application to deep drawing through experiments and analysis.
MembersFaculty
Members of the Resource and Energy Processes Lab consist of faculty and students in the doctoral program (including working professionals), the master's program, and the undergraduate program.
- ProfessorTakayuki Hama
- Assistant ProfessorNaoki Miyazawa
VoicesStudent voices
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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: “Film - The Romance of Iron and Steel (1938) - sheet steel storage” sponsor: ARMCO studio: Tri-State Motion Pictures / Public domain (cropped)
- Predicting the deformation of dual-phase steel sheets from crystals: “Microstructure of 2707 Hyper Duplex Stainless Steel” Huabing Li, Enze Zhou, Dawei Zhang, Dake Xu, Jin Xia, Chunguang Yang, Hao Feng, Zhouhua Jiang, Xiaogang Li, Tingyue Gu & Ke Yang / CC BY 4.0 (cropped)
- Modeling metals under large stretching: “Tensile Test of Designed Paper Specimen” Admazzeo / CC BY-SA 4.0 (cropped)
- Crystal plasticity models for aluminum alloy sheets: “Aluminum foil 1” James St. John / CC BY 2.0 (cropped)
- Application to forming magnesium alloy sheets: “Mg alloy car engine blocks” Mark Fergus / CC BY 3.0 (cropped)
- Related lab (ミネラルプロセシング): “Kitazawa flotation mineral processing field - panoramio” ccfarmer / CC BY 3.0 (cropped)
- Related lab (水環境工学): “ČBu, wastewater treatment plant 05” Czeva / CC BY-SA 4.0 (cropped)
- Related lab (都市基盤システム工学): “The city lights of Hong Kong and Shenzhen (iss072e399613)” NASA Johnson Space Center / Public domain (cropped)
- Related lab (地殻環境工学): “Satellite Image, Pearl River Bridge 19660823” CIA/NRO/USGS / Public domain (cropped)
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