|Affiliation||Department of Mechanical Engineering|
|Fields of Research||Mechanics of Materials/ Structural Mechanics/ Materials Engineering/ Impact Engineering|
|Degree||Doctor of Engineering (Tokyo Institute of Technology)|
|Academic Societies||The Japan Society of Mechanical Engineers, The Japanese Society for Non-Destructive Inspection, The Society of Materials Science, Japan, The Japanese Society of Experimental Mechanics, Society of Plastics Engineers, The Japan Society for Computational Met|
Please append ".tut.ac.jp" to the end of the address above.
|Laboratory website URL||http://solid.me.tut.ac.jp|
|Researcher information URL（researchmap）||Researcher information|
Our major research field is interdisciplinary of mechanics and material engineering. In our laboratory, we are researching, developing, and designing materials and structures having adequate function for various aims from viewpoints of linkages of material mechanics and materials engineering by experimental, theoretical and numerical analysis. The objects of our research extend from nano- or micro-scale structures of materials to large scale mechanical structure made of metals, ceramics, polymers including foam films and their composites including nano-composites.
Theme1：Evaluation of mechanical properties and material design of polymers and polymeric composites
Application of polymers and polymeric composites are expanded to several mechanical structures and components since the materials have good mechanical properties with light weight. In the research, while mechanical properties of polymers and polymeric composites are evaluated, materials having excellent properties are also developed and designed.
1) Evaluation of mechanical properties and material designs of nano-composites
2) Effects of impact reduction and heat insulation by thin foam films
3) Effect of crosslinking in polymers on mechanical properties
4) Mechanical properties and material designs of rubber materials
5) Evaluation and material design for impact energy absorption
6) Development of functionally graded polymers and theirs engineering applications
Markus Karamoy UMBOH, Tadaharu ADACHI, Tadamasa NEMOTO, Masahiro HIGUCHI, Zoltan MAJOR: Non-Stoichiometric Curing Effect on Fracture Toughness of Nanosilica Particulate-Reinforced Epoxy Composites. Journal of Materials Science. Vol. 49 (2014), pp.7454-7461.
Tadaharu ADACHI, Wakako ARAKI, Masahiro HIGUCHI: Mixture Law Including Particle-Size Effect on Fracture Toughness of Nano- and Micro-Spherical Particle-Filled Composites (Invited paper). Acta Mechanica, Vol.214, No.1-2 (2010), pp.61-69.
Tadaharu ADACHI, Mayuka OSAKI, Wakako ARAKI, Soon-Chul KWON: Fracture Toughness of Nano- and Micro-Spherical Silica-Particle-Filled Epoxy Composites. Acta Materialia, Vol.56 (2008) pp.2101-2109.
Theme2：Development of mechanical structure systems for impact energy absorption and impact loading reduction
Currently mechanical structures and components are required high reliabilities for impact: safeties of occupants and pedestrians at automobiles collision, protection of mobile devices for drop impact, etc. In the researches, dynamic plastic deformation and collapses of structures are researched to develop novel structure for impact energy absorptions based on dynamic material properties. Novel methods are also developed to reduce impact loading by using thin foam films etc.
1) Evaluation of dynamic material properties
2) Development of materials for impact energy absorption
3) Development of mechanical structure systems for impact energy absorption
4) Development of active control systems for impact energy absorption
5) Reduction effect of impact loading of polymer foam films
6) Development of testing apparatuses for dynamic properties of mechanical components and materials
7) Evaluation method of dynamic and impact properties of structures
Hiroaki NAKAMOTO, Tadaharu ADACHI, Masahiro HIGUCHI: Approximate Analysis of Progressive Deformation in Honeycomb Structures Subjected to In-Plane Loading. Archive of Applied Mechanics, Vol. 83 (2013), pp379-396.
Tadaharu ADACHI, Atsuo TOMIYAMA, Wakako ARAKI, Akihiko YAMAJI: Energy Absorption of a Thin-Walled Cylinder with ribs Subjected to Axial Impact. International Journal of Impact Engineering, Vol.35 (2008) pp.65-79.
Azhari SASTRANEGARA, Tadaharu ADACHI, Akihiko YAMAJI: Improvement of Energy Absorption of Impacted Column due to Transverse Impact. International Journal of Impact Engineering, Vol.31 (2005), pp.483-496.
Theme3：Research of tree structures having flexible deformation and thier engineering application
Trees are keeps flexibility and withstand disturbances of winds, gravity etc. in growth process. In the research, internal structures of trees having flexibility and strength are clarified to apply to industrial materials and mechanical structures with biomimetics approaches.
1) Evaluation of distribution of mechanical properties in tree
2) Evaluation of mechanical properties of component cell in tree
3) Evaluation of flexibility and strength of tree
4) Development of materials having similar internal structures to tree
5) Biomimetic application of tree
Title of class
Introduction to Engineering (B10110010), Mechanics of Solids 1 (B11530120), Theory of Elasticity (B11620010), Experimental Practice for Mechanical Engineering (B11610021, B11610023), Introduction of Mechanical Engineering (B11530050), CAD/CAM/CAE Exercise (B11630030), Applied Mechanics of Materials (M41630030), Advanced Mechanical Systems (D51030010)