Dr. Nakatani entered the Department of Mechanical Engineering in Osaka University in 1984 and completed the 4-year course in 1988. Since then, he had been a Ph.D. candidate of Graduate School of Engineering in Osaka University, studying under the direction of Professor Hiroshi Kitagawa in the Laboratory of Solid Mechanics. He was granted a Master degree in 1990 and a Ph.D. degree in 1993. He has experienced Teaching Assistant, Research Associate, Assistant Professor and Associate Professor at Osaka University, and he is currently the Professor of Department of Adaptive Machine Systems in Osaka University. He obtained the 1999 fellowships for academic staff of Japanese national university by the Ministry of Education of Japan. He was invited to U.S.A. as Visiting Associate Professor (Research) in Brown University for studying with Prof. Alan Needleman. Major themes of him are microstructural modeling of deformation and mechanical properties, and proposal of a novel methodology based on simulations. He has conducted very pioneering studies of atomistic simulations in strength of materials and in a solid mechanics area. He clarified a theoretical background of the criterion for fractures in crystalline and amorphous metals by using atomistic models. He also investigated the mesoscopic phenomena near the crack tip by using a discrete dislocation dynamics. His publications seem to involve many interesting topics for quite a few scientists engaging in computational mechanics, and the series of his achievement attracting a great deal of attention in the sense of multiscale modeling which connects microscale structure with macroscopic mechanical behavior. He has also contributed to international activities such as Editorial Committee of Theoretical and Applied Mechanics, Volume 48 (1999), International Scientific Committee of the 5th International Seminar on Microstructures and Mechanical Properties of New Engineering Materials ; IMMM2001 (2001), Organizing Committee of International Symposia on Materials Science for the 21st Century; ISMS-21 (2001), Organizing Committee of the 2002 International Conference on Computational; ICES'02 (2002), Organizing Committee of International Symposium for Young Researchers on Modeling and Their Applications ; IA'02 (2002) , Secretary of The International Union of Theoretical and Applied Mechanics (IUTAM) Symposium on Mesoscopic Dynamics of Fracture Process and Materials Strength ; IUTAM 2003 Osaka (2003), Organizing Committee of the 8th Asia-Pacific Symposium on Engineering Plasticity and Its Applications; AEPA2006 Nagoya (2006).

• Teaching
  • Undergraduate Course
    • Fundamentals of Solid Mechanics
      (Theory of Elasticity)
    • Applied Mathematics
      (Partial Differential Equations and Variational Principles)
    • Fracture/Fracture Control/Manufacturing
  • Master Course
    • Computational Mechanics for Materials
      (from Atomistic to Continuum)
    • Exercise on Adaptive Machine Systems
      (A Project Based Learning)
    • Seminar on Adaptive Machine Systems
  • Doctor Course
    • Mathematical Theories of Phenomenological Analysis
    • Seminar on Adaptive Machine Systems
• Co-Supervision of Doctoral Theses :
  

  2002.3	Dr. Tomotsugu Shimokawa
  2003.3	Dr. Ryosuke Matsumoto
  2003.3	Dr. Yasuko Motoyashiki
  2003.9	Dr. Jian-Wei Shi
  2004.3	Dr. Masahiro Ade
  2004.3	Dr. Jun Iwane
  2005.3	Dr. Ichihito Narita

• Grant-in-Aid from Ministry of Education, Culture, Sports, Science and Technology of Japan through Japan Society for the Promotion of Science (JSPS)
  

  1994	For Encouragement of Young Scientists
  1995	For Encouragement of Young Scientists
  1996	For Encouragement of Young Scientists
  1997	For Encouragement of Young Scientists
  1998	For Encouragement of Young Scientists
  1998	For Scientific Research on Priority Areas
  1999	For Encouragement of Young Scientists
  2000	For Encouragement of Young Scientists
  2001	For Encouragement of Young Scientists
  2002	For Young Scientists
  2003	For Exploratory Research

• Research Grants from Ministry of Economy, Trade and Industry, Japan through the New Energy and Industrial Technology Development Organization (NEDO)
  

  2001	``Bulk Nanometal'' Project (Collaborate Researcher)

• Research Grants from Incorporated Foundations
  

  1994	The Foundation "Hattori Hokokai", Japan
  1995	Iketani Science and Technology Foundation, Japan
  1996	Watanabe Research Foundation, Japan
  1996	Research Foundation for Materials Science, Japan

• Research Grants from Company
  

  2002	Kobe Steel, Ltd.

• Membership
  

  1988 - now	The Japan Society of Mechanical Engineers
  1991 - now	The Japan Society for Industrial and Applied Mathematics
  1994 - now	The Society of Material Science, Japan
  1995 - now	The Japan Institute of Metals
  1997 - now	The Japan Society for Computational Engineering and Science
  2002 - now	IACM, JACM

• Editorial Committee member of Theoretical and Applied Mechanics, Volume 48, (Proceedings of the 48th Japan National Congress on Theoretical and Applied Mechanics, 1999)
• Organizing Committee member of the 2002 International Conference on Computational Engineering & Sciences (ICES'02), Session: Nanotechnology and Nanosystems, Reno, Nevada, USA, July 31-August 2 2002.
• Organizing Committee member, International Symposium for Young Researchers on Modeling and their Applications (IA'02), Suita, Osaka, Japan 21-22 October 2002.
• Reviewer of Transaction of the Japan Society of Mechanical Engineers (2001-now).

• Atomistic Simulation:
  Nano-computer aided design/manufacturing/engineering (nanoCAD / CAM / CAE), Nano-Crystalline Materials, Crack Initiation, Dynamic Crack Propagation, Brittle vs. Ductile Transition, Dynamical Behavior of Dislocation, Dislocation-Dislocation Interaction, Grain Boundary, Deformation behavior of Amorphous Materials, Micro-Polishing and Cutting, Nano-Mechanism, Mechanical Behavior of Bio-Cell, Dendrimer
• Mesoscopic Dynamics:
  Construction of Sophisticated Mesomechanics Model, Discrete Dislocation Dynamics, Distribution of Dislocation near Crack Tip and Brittle-Ductile Transition, Mechanism of Fatigue Fracture, Self-Organization and Pattern Formation of Dislocations
• Conventional FEM-Based Simulation:
  Element Free Approach, Deformation near Crack Tip based on Crystal Plasticity, Singularity of Triple Junction of Grains, Homogenization (for Composite Smart Materials using Shape Memory Alloy)
• Semi-Phenomenological Field Simulation:
  CIP(Cubic Interpolated Pseudo-Particle) Method, Phase-Field Method, Smoothed Particle Hydrodynamics, Mechanism of Accommodation Helper near Triple Junctions, Superplasticity, Couple Problem between Fluid and Structures
• Multiscale Analysis:
  Relationship between Continuum and Atomic Description of Materials, Quasi-Continuum Analysis, Coupling Model of Molecular Dynamics and Continuum model

[Review Papers]

1. Akihiro Nakatani, ``Estimation of Mechanical Properties of Crystalline Material by Discrete Dislocation Dynamics'', Production and Technique, Vol.49, No.3 (1997), pp.49-52 (in Japanese).
2. Akihiro Nakatani, ``Multiscale Analysis on Mechanical Behavior of Materials by using Combined Method of Molecular Dynamics and Continuum Mechanics'', Journal of the Japan Gum Society, Vol.72, No.11 (1999) (in Japanese).
3. Akihiro Nakatani, ``Recent Advances and Multi-Hierarchical Perspectives in Plasticity Theory -- VII: Simulation of Plastic Deformation by Using Molecular Dynamics'', Journal of the Society of Material Science, Japan, Vol.48, No.11 (1999), pp.1328-1334 (in Japanese).
4. Akihiro Nakatani, Hiroshi Kitagawa and Sidney Yip, ``Connecting Molecular Dynamics and Dislocation Dynamics to Continuum in Hierarchical Simulations of Microcracks in Solids'', Material Science Research International, Vol.5, No.4 (1999), pp.241-247

[Books]

1. Hiroshi Kitagawa, Takayuki Kitamura, Yoji Shibutani and Akihiro Nakatani, ``Molecular Dynamics Method for Beginners'', (1997), Yokendo, (in Japanese).
2. Molecular Dynamics in ``Handbook of Computational Mechanics'', JSME, to be published (in Japanese).
3. Discrete Dislocations in ``Handbook for Mechanical Engineers'', JSME, to be published (in Japanese).

[General Papers]

1. Hiroshi Kitagawa, Haruyuki Konishi and Akihiro Nakatani, ``Study on Computational Modeling for Materials with Crystalline Structure -- [I] Numerical Simulation of Opening of Ductile Crack Using Crystal Slip Theory --'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.57, No.541 (1990), pp.1986-1991 (in Japanese).
2. Hiroshi Kitagawa and Akihiro Nakatani, ``Crystal Plasticity Model and Molecular Dynamics (Numerical Simulation of Plane Strain Inhomogeneous Deformation) --'', Constitutive Relations for Finite Deformation of Polycrystalline Metals (ed. by R.Wang and D.C.Drucker), (Proceedings of IUTAM Symposium, Beijing, China, July 1991), (1992), pp.220 - 233, Springer Verlag.
3. Hiroshi Kitagawa and Akihiro Nakatani, ``Microstructural Aspects of Crack Extension in a Crystalline Material -- A Molecular Dynamic Study --'', Mechanical Behavior of Materials - VI (ed. by M.Jono and T.Inoue), Proceedings of the Sixth International Conference (ICM6), Kyoto, Japan, 29 July - 2 August 1991, (1991), pp.111 - 116, Pergamon Press.
4. Hiroshi Kitagawa and Akihiro Nakatani, ``Study on Computational Modelling for Materials with Crystalline Structure -- [II] Molecular Dynamic Simulation of Microscopic Crack Tip Field under Anti-plane Shear Loading --'' , Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.59, No.557 (1993), pp.256-262 (in Japanese).
5. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Molecular Dynamics Study of Crack Initiation'', Proceedings of International Seminar on Microstructures and Mechanical Properties of New Engineering Materials (IMMM'93), (ed. by M.Tokuda and M.Senoo), Mie University, 3 - 5, August, 1993, (1993), pp.19 - 26, Mie Academic Press.
6. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Study on Computational Modelling for Materials with Crystalline Structure -- [III] A Numerical Simulation of Atomic Structure in Crack-Tip Field under Mode II Loading --'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.59, No.564 (1993), pp.1834-1841 (in Japanese).
7. Yoji Shibutani, Hiroshi Kitagawa and Akihiro Nakatani, ``Estimation of Intrinsic Stress in Surface Layer Caused by Incident Ions'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.59, No.564 (1993), pp.1971-1977 (in Japanese).
8. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Molecular Dynamics Study of Crack Processes Associated with Dislocation Nucleated at the Tip'', Materials Science and Engineering, A176(1994), pp.263 - 269.
9. Hiroshi Kitagawa and Akihiro Nakatani, ``Computational Modelling for Materials with Crystalline Structure -- Molecular Dynamic Simulation of Microscopic Crack Tip Field under Antiplane Shear Loading --'', JSME International Journal, Series A, Vol.38, No.1 (1995), pp.1 - 8.
10. Akihiro Nakatani, Hiroshi Kitagawa, Yoji Shibutani and Keiko Nakatani, ``Molecular Dynamics Study on Ductile Crack Process -- Effect of Temperature on Dislocation Nucleation --'', Material Science Research International, Vol.1, No.1 (1995), pp.11-16.
11. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Dislocation Nucleation from a Crack-Tip under In-Plane Shear -- Molecular Dynamics Study of Influence of Kink of Crack Front and Dislocation Line --'', Acta Mechanica Solida Sinica, Vol.8, S.Issue, (1995), pp.53-57.
12. Ken-ichi Saitoh, Hiroshi Kitagawa, Yoji Shibutani and Akihiro Nakatani, ``Dynamic Rearrangement in Atomic Structure Induced by Interaction between Grain Boundary and Vacancy'', Dynamic Plasticity and Structural Behaviors, Proceedings of Plasticity'95, (1995), pp.309-312.
13. Hiroshi Kitagawa, Akihiro Nakatani, Haruyuki Konishi, and Yasushi Ujita, ``Localized Deformation on Silicon Iron Sheet -- Numerical Simulation of bcc Crystal Based on Crystal Plasticity Theory)'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.61, No.590 (1995), pp.2259-2263 (in Japanese).
14. Keiko Nakatani, Hiroshi Kitagawa and Akihiro Nakatani, ``Molecular Dynamics Simulation of the Local Structure and Internal Stress of Single-Component Amorpheus Metal'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.62, No.595 (1996), pp.847-852 (in Japanese).
15. Hiroshi Kitagawa, Akihiro Nakatani, Shigenobu Ogata, Ken-ichi Saitoh and Yukihiro Maegawa, ``Atomic Diffusion near Al-Grain Boundary (A Molecular Dynamics Analysis Based on Effective-Medium Theory)'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.62, No.602 (1996), pp.2358-2363 (in Japanese).
16. Hiroshi Kitagawa, Akihiro Nakatani, Shigenobu Ogata, Ken-ichi Saitoh, and Yukihiro Maegawa, ``Molecular Dynamics Study of Stress-Induced Migration near Al Grain Boundary'', JSME International Journal, Series A, Vol.40, No.3 (1997), pp.203 - 210. (original: Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.62, No.595 (1996), pp.853-858 (in Japanese)).
17. Hiroshi Kitagawa, Akihiro Nakatani and Haruyuki Konishi, ``Analysis of Multiple Slip in Aluminum Bicrystals -- Latent Hardening Model for Multiple Slip State --'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.62, No.602 (1996), pp.2358-2363 (in Japanese).
18. Ken-ichi Saitou, Hiroshi Kitagawa, Akihiro Nakatani, and Shigenobu Ogata, ``Molecular Dynamic Study on Strength of Coincident Grain Boundaries'', Journal of the Society of Material Science, Japan, Vol.46, No.3 (1997), pp.238-243 (in Japanese).
19. Keiko Nakatani, Hiroshi Kitagawa and Akihiro Nakatani, ``Molecular Dynamics Simulation on the Mechanical Strength of One-Component Amorpheus Metal -- Decreasing of Elastic Moduli and Strength Induced by Change of Internal Structure'', Journal of the Society of Material Science, Japan, Vol.46, No.3 (1997), pp.244-249 (in Japanese).
20. Akihiro Nakatani, Hiroshi Kitagawa and Keiko Nakatani, ``Molecular Dynamics Study of Relationship between Shear Stress and Velocity of Dislocation for Discrete Dislocation Dynamics'', Journal of the Society of Material Science, Japan, Vol.46, No.6 (1997), pp.619-624 (in Japanese).
21. Akihiro Nakatani, Hiroshi Kitagawa and Keiko Nakatani, ``Occurrence and Motion of Dislocation from Mode II Crack Tip in Bcc Crystal'', Journal of the Society of Material Science, Japan, Vol.46, No.6 (1997), pp.625-630 (in Japanese).
22. Haruyuki Konishi, Hiroshi Kitagawa, Akihiro Nakatani, and Shigenobu Yasunaga, ``Texture Development of f.c.c. Polycrystal during Plane Strain Compression'', Journal of the Society of Material Science, Japan, Vol.46, No.7 (1997), pp.880-886 (in Japanese).
23. Akihiro Nakatani and Hiroshi Kitagawa, ``Microstructural Aspects of Tensile Deformation in Nano-Crystalline Material -- A Molecular Dynamics Study'', Ed. by Masafumi Senoo, Bingye Xu, Masataka Tokuda, Borut Bundara, ``Mechanical Properties of Advanced Engineering Materials (Proceedings of IMMM'97, The 3rd International Symposium on Microstructures and Mechanical Properties of new Engineering Materials, Mie University, Tsu, Japan, 6 - 8, August, 1997)'', (1997), Mie Academic Press, pp.71-78.
24. Keiko Nakatani, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Study on Fracture Mechanism of Fe-Amorphous Metal (J Integral near Mode I Crack Tip) '', Mesoscopic Dynamics of Fracture -- Computational Materials Design -- (Advances in Materials Research), Ed. by Hiroshi Kitagawa, Tomoyasu Aihara Jr. and Yoshiyuki Kawazoe, (1998), Springer, pp.88-98.
25. Akihiro Nakatani, Hiroshi Kitagawa and Makoto Sugizaki, ``Discrete Dislocation Dynamics Study on Distribution of Dislocations and Stress Field near Crack Tip'', Mesoscopic Dynamics of Fracture -- Computational Materials Design -- (Advances in Materials Research), Ed. by Hiroshi Kitagawa, Tomoyasu Aihara Jr. and Yoshiyuki Kawazoe), (1998), Springer, pp.143-154.
26. Akihiro Nakatani, Hiroshi Kitagawa and Hidetoshi Nishiyama , ``Estimation of Elastic Interaction Effects between Macrocrack-Microcrack Array by Homogenization Method'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol. 64, No. 628 (1998), pp.2889-2894(in Japanese).
27. Akihiro Nakatani, Hiroshi Kitagawa and Tomotsugu Shimokawa, ``Molecular Dynamics Study on the Mechanism of Nanometric Surfacing of Microcomposite Material'', Journal of the Society of Material Science, Japan, Vol.64, No.628 (1998), pp.381-386 (in Japanese).
28. Akihiro Nakatani, Takuya Miyake and Hiroshi Kitagawa, ``Discrete Dislocation Dynamics Simulation and Visualization of Corrective Behavior of Dislocations near Crack Tip Field'', Proceedings of Computer Visualization Symposium '99, (1999), pp.41-44(in Japanese).
29. Akihiro Nakatani, Takuya Miyake and Hiroshi Kitagawa, ``Discrete Dislocation Dynamics Simulation and Visualization of Corrective Behavior of Dislocations near Crack Tip Field'', Nikkei Science, Vol.29, No.10(No.336) (1999), pp.122 (in Japanese).
30. Akihiro Nakatani, Hiroshi Kitagawa and Makoto Sugizaki, ``Discrete Dislocation Dynamics Study of Fracture Mechanism and Dislocation Structures formed in Mesoscopic Field near Crack Tip under Cyclic Loading'', JSME International Journal, Series A, Vol.42, No.4 (1999), pp.463-471.
31. Keiko Nakatani, Akihiro Nakatani, Hiroshi Kitagawa and Yoshihiko Sugiyama, ``Molecular Dynamics Simulation on Crack Growth in Amorphous Metal'', Journal of the Society of Material Science, Japan, Vol.49, No.3 (2000), pp.275-281 (in Japanese).
32. Akihiro Nakatani, Hiroshi Kitagawa and Tomotsugu Shimokawa, ``Molecular Dynamics Study of Mechanical Properties and Inelastic Deformation Mechanism of Nanocrystalline Materials under Tensile Loading'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.66, No.643 (2000), pp.435-441 (in Japanese).
33. Keiko Nakatani, Akihiro Nakatani, Yoshihiko Sugiyama, and Hiroshi Kitagawa, ``Molecular Dynamics Study on Mechanical Properties and Fracture in Amorphous Metal'', AIAA Journal, Vol.38, No.4 (2000), pp.695-701.
34. Ryosuke Matsumoto, Hiroshi Kitagawa, Keiko Nakatani and Akihiro Nakatani, ``Atomistic Analysis of Crack Propagation in Amorphous Metal'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.67, No.653 (2001), pp.23-29 (in Japanese).
35. Tomotsugu Shimokawa, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Study of Structure and Mechanical Properties of Grain Boundaries in Nanocrystalline Materials'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.68, No.670 (2002), pp.858-865 (in Japanese).
36. Tomotsugu Shimokawa, Akihiro Nakatani and Hiroshi Kitagawa, ``Mechanical Properties Depending on Grain Sizes of Fcc Nanocrystalline Metals by Using Molecular Dynamics Simulation (Investigation of Stacking Fault Energy's Influence)'', Transaction of the Japan Society of Mechanical Engineers, Ser. A, Vol.68, No.676 (2002), to be published (in Japanese).
37. Ryosuke Matsumoto, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Simulation of Deformation-Induced Nanocrystallization During Plastic Deformation in an Amorphous Metal'', Journal of the Society of Material Science, Japan, Vol.52, No.3 (2003), pp.275-281 (in Japanese).
38. Ryosuke Matsumoto, Akihiro Nakatani and Hiroshi Kitagawa, ``Crack Opening Behavior in Amorphous Metal (Comparative Study of Atomistic and Elasto-Viscoplastic Continuum Model)'' Transaction of the Japan Society of Mechanical Engineers, Ser. A, submitted for publication (in Japanese).
39. Jian-Wei Shi, Akihiro Nakatani and Hiroshi Kitagawa, JSME International Journal, Series A, submitted for publication.
40. Akihiro Nakatani, Walter J. Drugan, Erik van der Giessen and Alan Needleman, ``Crack Tip Fields at a Ductile Single Crystal-Rigid Material Interface'', International Journal of Fracture, submitted for publication.

[International Conference and Seminar]

1. Hiroshi Kitagawa and Akihiro Nakatani, ``Crack Tip Field in Crystalline Material -- Counterpart in Atomistic Simulation of Singularity Obtained by Crystal Plasticity Model --'', XVIIIth International Congress of Theoretical and Applied Mechanics, Haifa, Israel, 22-28 August 1992.
2. Hiroshi Kitagawa and Akihiro Nakatani, ``Atomic Structure in Crack-tip Field of Crystalline Material -- A Molecular Dynamics Simulation --'', International Conference on Computational Engineering Science (ICES'92), HongKong, 17 - 22, December 1992.
3. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Molecular Dynamics Study of Crack Processes Associated with Dislocation Nucleated at the Tip'', International Conference on Fundamentals of Fracture IV (ICFF IV), Urabandai, Japan, 31, May - 4, June, 1993.
4. Hiroshi Kitagawa and Akihiro Nakatani, ``Molecular Dynamics Study of Crack Tip Processes under Anti-Plane Shear Loading'', First Asian-Oceania International Symposium on Plasticity, Beijing, China, August, 1993.
5. Hiroshi Kitagawa, Akihiro Nakatani and Yoji Shibutani, ``Dislocation Nucleation from a Crack-Tip under In-Plane Shear -- Molecular Dynamics Study of Influence of Kink of Crack Front and Dislocation Line --'', FEFG'94 International Symposium on Fracture and Strength of Solids, Xian, China, 4-7 July, 1994.
6. Akihirho Nakatani, Hiroshi Kitagawa, Yoji Shibutani and Keiko Nakatani, ``Atomistic Simulation on Motion of Dislocation from Crack Tip'', Mechanical Behaviour of Materials - VII Proceedings of the 7th International Conference, Delft, Netherlands, 28 May - 2 June, 1995, pp.460-461.
7. Hiroshi Kitagawa, Akihiro Nakatani and Haruyuki Konishi, ``Interaction Between Shear Band and Grain Boundary'', Mechanical Behaviour of Materials - VII Proceedings of the 7th International Conference, Delft, Netherlands, 28 May - 2 June, 1995, pp.462-453.
8. Hiroshi Kitagawa, Akihiro Nakatani and Haruyuki Konishi, ``Analysis of Localized Deformation in Sheet Metal Based on Crystal Plasticity Theory'', International Conference on Computational Engineering Science 95 (ICES'95), Hawaii, USA, 30, July - 3, August, 1995, pp.2093-2098.
9. Keiko Nakatani, Hiroshi Kitagawa and Akihiro Nakatani, ``Molecular Dynamics Study on the Behavior of Deformation of Single-Component Amorphous under Uniaxial Loading '', International Symposia on Advanced Materials and Technology for the 21st Century, Honolulu, Hawaii, U.S.A., 13 - 15 December, 1995 (JIM '95 Fall Annual Meeting(117th) in Hawaii) , (1995). p.335.
10. Keiko Nakatani, Hiroshi Kitagawa and Akihirho Nakatani, ``Molecular Dynamics Study of Deformation Mechanism and Damage in Single-Component Amorphous'', Third Asis-Pacific Symposium on Advances in Engineering Plasticity and its applications(AEPA'96), Hiroshima University, 21-24 August, 1996, pp.489-494.
11. Hiroshi Kitagawa, Akihiro Nakatani, Shigenobu Ogata, and Ken-ichi Saitoh, ``Excess Energy and Diffusion Mechanism in Coincidence Grain Boundaries'', Third Asia-Pacific Symposium on Advances in Engineering Plasticity and its applications(AEPA'96), Hiroshima University, Hiroshima, Japan, 21-24 August, 1996, pp.535-540.
12. Akihiro Nakatani and Hiroshi Kitagawa, ``Combined Simulation of Molecular Dynamics and Finite Element Method -- Formulation and Application for Study on Lattice Defects --'', Proceedings of International Seminar on quasi-Impulsive Analysis(IA'96), Osaka University, Suita, Japan, 20-22 November, 1996, pp.A1-1,12.
13. Akihiro Nakatani and Hiroshi Kitagawa, ``Microstructural Aspects of Tensile Deformation in Nano-Crystalline Material -- A Molecular Dynamics Study'', Program and Abstracts of the Third International Symposium on Microstructures and Mechanical Properties of New Engineering Materials (IMMM'97), Mie University, 6 - 8, August, 1997, p.40., Mie Academic Press.
14. Keiko Nakatani, Akihiro Nakatani, Yoshihiko Sugiyama, and Hiroshi Kitagawa, ``Molecular Dynamics Study on Mechanical Properties and Fracture in Amorphous Metal'', 39th Structures, Structural Dynamics and Materials (SDM) Conference and Exhibit, April 20-23, 1998/Long Beach, CA (1998).
15. Akihiro Nakatani, ``Some Microscopic Aspects of Dislocation and Crack Interaction'', The 1st Report of International Program on Hierarchical Estimation of Materials Strength by MD Simulations(New Sophisticated Approach), 13th November, 1997 Osaka University, supported by the Japan, Minister of Education (Monbusho International Scientific Research Program: Joint Research 09044165), pp.8-9.
16. Akihiro Nakatani and Hiroshi Kitagawa, ``Discrete Dislocation Dynamics Study on Mechanism of Fracture under Cyclic Loading'', Simulation of Microstructure and Strength of Materials (SMSM), Max-Planck-Institut fuer Metallforschung, Stuttgart, 20 - 21 July, 1998.
17. Keiko Nakatani, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Study on the Fracture of Amorphous Metal'', Simulation of Microstructure and Strength of Materials (SMSM), Max-Planck-Institut fuer Metallforschung, Stuttgart, 20 - 21 July, 1998.
18. Akihiro Nakatani and Hiroshi Kitagawa, ``Discrete Dislocation Dynamics Study on Fatigue Fracture'', Progress in Mechanical Behaviour of Materials Volume I Fatigue and Fracture (ed. by F.Ellyin and J.W.Provan), Proceedings of the Eighth International Conference (ICM8), Victoria, B.C., Canada May 16-21 1999, (1999), pp.96 - 101, Fleming Printing Ltd. Canada.
19. Akihiro Nakatani, Tomotsugu Shimokawa and Hiroshi Kitagawa, ``Molecular Dynamics Study of Grain Rotation in Nano-polycrystalline Material under Uniaxial Tensile Loading'', Abstracts of International Symposium on Hierarchical Modeling for Evaluation of Materials Strength, July 28, 1999 , Keio University, Mita Campus (Mita, Minato, Tokyo) (1999), p.4
20. Hiroshi Kitagawa, Tomotsugu Shimokawa, and Akihiro Nakatani, ``Deformation Mechanism of Nano-Crystalline Material under Uniaxial Tension/Compression'', Abstract Book of 20th International Congress of Theoretical ans Applied Mechanics (ICTAM 2000), 27 August - 2 September 2000, p. 222.
21. Tomotsugu Shimokawa, Akihiro Nakatani, and Hiroshi Kitagawa, ``Grain Boundary Characteristics of Nano-Polycrystalline Materials using Molecular Dynamics Simulation'', Proceeding of 4th International Symposium on Intermaterials (IMA4), Osaka, Japan, 6-7 February 2001, p. 39. (Poster Session)
22. Ryosuke Matsumoto, Hiroshi Kitagawa, Keiko Nakatani, and Akihiro Nakatani, "A New Algorithm for Large Scale Molecular Dynamics and Its Application to Deformation Analysis of Crack in Amorphous Metal", Proceeding of 4th International Symposium on Intermaterials (IMA4), Osaka, Japan, 6-7 February 2001, p. 37. (Poster Session)
23. Ryosuke Matsumoto, Hiroshi Kitagawa, Keiko Nakatani, and Akihiro Nakatani, ``Large Scale MD study on Deformation Mechanism around Crack Tip in Amorphous Metal'', Proceeding of Material Science for the 21st Century (JSMS-21), Osaka, Japan, 21-26 May 2001, Vol. B, pp.277-280.
24. Tomotsugu Shimokawa, Akihiro Nakatani, and Hiroshi Kitagawa, ``Molecular Dynamics Simulation on Mechanical Properties and Internal Structures of Nano-Crystalline Materials under Different Loading Processes'', Proceeding of Material Science for the 21st Century (JSMS-21), Osaka, Japan, 21-26 May 2001, Vol. B, pp. 281-284.
25. Tomotsugu Shimokawa, Akihiro Nakatani and Hiroshi Kitagawa, ``Deformation and Fracture Mechanism of Round Bar Specimen of Nanocrystalline Materials by Molecular Dynamics Simulation'', Proceedings of the Fifth World Congress on Computational Mechanics (WCCM V), July 7-12, 2002, Vienna, Austria, Editors: Mang, H.A.; Rammerstorfer, F.G.; Eberhardsteiner, J., Publisher: Vienna University of Technology, Austria.
26. Akihiro Nakatani, Alan Needleman, Erik van der Giessen and Walter J. Drugan, ``Discrete Dislocation Analysis of Near Tip Fields for a Crack Along an Interface between a Single Crystal and a Rigid Substrate'', Proceedings of the Fifth World Congress on Computational Mechanics (WCCM V), July 7-12, 2002, Vienna, Austria, Editors: Mang, H.A.; Rammerstorfer, F.G.; Eberhardsteiner, J., Publisher: Vienna University of Technology, Austria.
27. Akihiro Nakatani, Alan Needleman and Erik van der Giessen, ``Multiscale Analysis of Near Tip Fields for a Metal-Ceramic Interface'', Advances in Computational Engineering & Sciences (Proceedings of the 2002 International Conference on Computational Engineering & Sciences).
28. Ryosuke Matsumoto, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Simulation of Deformation-Induced Nanocrystallization Process in Amorphous Metal'', Advances in Computational Engineering & Sciences (Proceedings of the 2002 International Conference on Computational Engineering & Sciences, ICES'02).
29. Jian-Wei Shi, Akihiro Nakatani and Hiroshi Kitagawa, ``Bending and Vibration Analysis of Angle-Ply Laminated Composite Cylindrical Panel Including Transverse Shear Effect'', Advances in Computational Engineering & Sciences (Proceedings of the 2002 International Conference on Computational Engineering & Sciences, ICES'02).
30. Jian-Wei Shi, Akihiro Nakatani and Hiroshi Kitagawa, ``Effect of In-Plane Constraints on the Vibration Behavior of Symmetric Laminated Doubly Curved Composite Shells'', The Fifth China-Japan-US Joint Conference on Composite (CJAJCC-5), August 21-24, 2002, Kunming, China.
31. Ryosuke Matsumoto, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Simulation of Shear-Bands Formation and Deformation Induced Nanocrystallization During Double-Edge-Notch Growth in an Amorphous Metal'', Proceedings of International Symposium for Young Researchers on Modeling and Their Applications(IA'02), October, 21-22, 2002, Osaka, Japan, pp.275-282.
32. Itsuo Hanasaki, Akihiro Nakatani and Hiroshi Kitagawa, ``Molecular Dynamics Study of Ar Flow Inside Nanotube Junction as Nanoscale Nozzle and Diffuser'', Proceedings of International Symposium for Young Researchers on Modeling and Their Applications(IA'02), October, 21-22, 2002, Osaka, Japan, pp.283-290.
33. Akihiro Nakatani, Alan Needleman, Erik van der Giessen, ``Atomistic and Discrete Dislocation Analyses of an Interface Crack'', Symposium of Mesoscopic Simulations, December 13, 2002, Osaka, Japan