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Committee Name

 Chairperson

Introduction

JSMS Committee on Fatigue of Materials

Atsushi Sugeta (Hiroshima　University)

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JSMS Committee on High Temperature Strength of Materials

Yukio Takahashi (Central Research Institute of Electric Power Industry)

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JSMS Committee on Prestressed Concrete Structures and Materials

Tadashi Nakatsuka (Osaka Institute of Technology)

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JSMS Committee on X-ray Study of Mechanical Behavior of Materials

Yoshiaki Akiniwa (Yokohama National University)

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JSMS Committee on Corrosion and Protection

Kohji Minoshima (Osaka University)

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JSMS Committee on Ground Improvement

Mikio Yamada

(Fukui National College of Technology)

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JSMS Committee on Wood and Wood-Based Materials

Tadashi OKAMOTO (Kinki University)

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JSMS Committee on Engineering Plasticity

Kazuyuki Shizawa (Keio University)

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JSMS Committee on Rock Mechanics

Toshihiro Asakura (Kyoto University)

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JSMS Committee on Polymers in Concrete

Toyoaki Miyagawa (Department of Civil and Earth Resources Engineering, Kyoto University)

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JSMS Committee on Processing and Properties of Materials under Extreme Environment

Seiji Sawamura (Ritsumeikan University)

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JSMS Committee on Aggregates for Concrete

Shinzo Nishibayashi

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JSMS Committee on Admixtures for Concrete

Hirotaka Kawano (Kyoto University)

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JSMS Committee on Composite Materials

Masaki Hojo (Kyoto University)

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JSMS Committee on Fractography

Yoshio Arai (Saitama University)

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JSMS Committee on Reliability Engineering

Hidetoshi Nakayasu (Konan University)

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JSMS Committee on Ceramic Materials

Yasunori Okamoto (Kyoto Institute of Technology )

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JSMS Committee on Fracture Mechanics

Keiichiro Tohgo (Shizuoka University)

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JSMS Committee on Polymeric Materials

Tadashi Inoue (Osaka University)

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JSMS Committee on IMPACT

Hidetoshi Kobayashi (Osaka University)

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JSMS Committee on Strength Design and Safety Assessment

Takeshi Horikawa (Ryukoku University)

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JSMS Committee on Molecular Dynamics Simulation

Shigenobu Ogata (Osaka University)

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JSMS Committee on Micromaterials

Yakichi Higo (Tokyo Institute of technology)

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JSMS Committee on Semiconductor Electronics

Shizuo Fujita (Kyoto University)

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JSMS Committee on

Eiji Arai (Osaka University)

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JSMS Committee on Nanomaterials

Katsuhisa Tanaka (Kyoto University)

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JSMS Committee on Biomedical Materials

Jun Komotori (Keio University)

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JSMS Committee on Metallic Glasses

Eiichiro Matsubara (Kyoto University)

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******　JSMS Committee on Fatigue of Materials　******


Preface
The discovery of a "fatigue" phenomenon dates back to 1838 at which J. Albert, a German mining engineering, reported his work on the fracture of chains for mining use. However, "fatigue" is not out of date. Although many years have passed since the Albert's report, fatigue problems just arise on and on, and are carried over into the 21st century. Of course, in the 20th century, fatigue investigations have been conducted actively and extensively, and a lot of new and original concepts on fatigue phenomena have been proposed. So, we must have great stores of knowledge obtained by previous works. Still, it is expected that the prevention of fatigue failures remains one of key technologies even in the 21st century so long as not only new devices or structures but advanced materials, which have no similarity to conventional ones, are developed and applied.

History and Activities
In the Society of Materials Science, Japan (JSMS), JSMS Committee on Fatigue of Materials, consisting of only twenty-nine members, was originally founded in 1953 for the study of fatigue problems. The Committee has the longest history among JSMS Committees, and has developed to the largest committee. Now, around two hundred and fifty members join the Committee, and are active in works to grapple with fatigue problems. Committee members engage in fatigue problems not only in universities and research institutes, but also in design divisions of companies, to prevent accidents caused by fatigue. Research activities of individual members can be searched in "Japanese Fatigue Bibliographic Database", which is now being expanded on the English home page of JSMS. The Committee Meeting is held five times per year to discuss current problems on fatigue of new materials as well as ordinary materials, from viewpoints of fundamental study and engineering application toward the development of fatigue design technology. "Fatigue Symposium" is organized by the Committee every two years, in which recent achievements on fatigue studies in Japan are presented and discussed. The Committee also holds other events, such as "Fatigue Lecture Series" and "Short Course of Fatigue Design for Beginners" to enlighten the importance of fatigue problems. The Committee founds subcommittees in order to discuss specific themes intensively. At present, three research subcommittees are working actively in investigations on "the variation of microstructure during fatigue process", "the assessment technologies of fatigue damage using synchrotron radiation SPring-8", and "the fatigue strength design for light airplane". In addition, another subcommittee is also active in reviewing JIS (Japanese Industrial Standard) documents related to fatigue testing.

Publications, Databases and Standards
The Committee has published "Fatigue Testing Handbook", "Fatigue of Metals", "Fatigue Design Handbook of Metallic Materials", "Current Research on Fatigue Cracks (CJMR Vol.1)", "Statistical Research on Fatigue and Fracture (CJMR Vol.2)", "Cyclic Fatigue in Ceramics (CJMR Vol.14)" and "Fatigue Design Handbook". The Committee together with JSMS Committee on Reliability Engineering developed a databook as well as fact database on fatigue strength. In 1996, "Databook on Fatigue Strength of Metallic Materials", which had been reorganized by editing previous publications of Vol.1 to Vol.5, was distributed worldwide as a joint enterprise by JSMS and Elsevier Science. Furthermore, the Committee published "Ceramics Strength Database (Vol.1)", which collects strength data of typical engineering ceramics. The Committee also participates in the establishment of society standards. It has published two JSMS Standards, "Residual Stress Measurement for Engineering Ceramics by Indentation Fracture Method" in 2001, and "Standard Evaluation Method of Fatigue Reliability for Metallic Materials - Standard Regression Method of S-N Curves" in 2002. The latter standard was edited in cooperation with JSMS Committee on Reliability Engineering, and is now available in an English version.

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****　JSMS Committee on High Temperature Strength of Materials　****


The committee on High Temperature Strength of Materials was established in 1954 as the committee on Creep and renamed to the present name in 1959. The committee has been dealing with the problems in high temperature plants such as boilers and turbines, fast reactors in which various kinds of steels and alloys are the principal materials to investigate. Recently, solders in electric devices are also been discussed in the committee. Technical scopes of the committee are,
　・Mechanical behavior of materials at high temperatures; creep, high temperature fatigue, thermal fatigue, creep-fatigue, etc. ,
　・Inelastic analysis,
　・Microstructure,
　・Weldment,
　・Coatings,
　・Fracture mechanics,
　・Damage/life assessment,
　・Non-destructive/destructive evaluation,
　・High temperature design, etc.
We hold five regular meetings and one domestic symposium on Strength of Materials at High Temperatures every year. We also organize some international symposiums to encourage academic and technical exchange in this field. In 1992, a bilateral symposium between China and Japan was initiated in cooperation with the High Temperature Strength and Materials Committee of the Society of Materials, Chinese Mechanical Engineering Society and it has been held every three years. The committee has been organizing many working groups in consideration of the demands of time, following the first one founded in 1970 for thermal stress and thermal fatigue. Currently, the following six working groups are in action;
　・Life assessment based on inelastic analysis,
　・Investigation of microstructures and mechanical properties of materials,
　・Properties of superalloys and their coating materials,
　・Mechanical Behaviors of solders,
　・Damage measurement,
　・Small sample creep testing.
The committee consists of researchers from a various organizations such as universities, national/ public research institutes, electric power suppliers, material providers, plant manufacturers, etc. and facilitates discussions and collaborations between them.

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****　JSMS Committee on Corrosion and Protection　****


The society of materials science, Japan (JSMS) Committee on Corrosion and Protection was founded in 1961, to share corrosion knowledge and expertise among the members. Since then, the committee has organized many activities that support the development of corrosion technology. The committee involves in every industry and area of corrosion and protection. Currently, the committee consists of more than 100 members, including university, private companies and national institutes. The committee organized regular meeting every two months, where the comprehensive lectures on specific theme are given. The research meetings are sessions to discuss about the latest corrosion knowledge and techniques. Since the committee established, it has organized 260 regular meetings and 56 research meetings so far. The committee also publishes unique textbooks and handbooks on corrosion science and technology.

Main Activities
　・Organizing Regular Meeting every two months
　・Holding Research Meetings 1 to 2 times per a year.
　・Holding Symposiums and Seminars.
　・Publishing Technical books, Handbooks and Textbooks.

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****　JSMS Committee on Ground Improvement　****


The "ground" is indispensable as a foundation (ground) for supporting structures, and as a constituent material (ground material) of earth structures such as landfills and embankments. However, the ground varies greatly from region to region, and exhibits an infinite variety of engineering characteristics, and thus may not always meet the conditions required for use. "Ground improvement" is the act of physical, chemical or biological treatment to render the ground into a usable state, and maintain that state. Recently, the constraint conditions on construction work, and siting conditions on structures, have become more stringent. Thus more demanding conditions are frequently required of the soil, and various types of "ground improvement techniques" with different characteristics have been developed and used in order to meet those conditions.
The Committee on Ground Improvement was established in November 1962, as the "Committee on Soil Stabilization Materials", to research and investigate the various problems associated with ground improvement, and promote the proper use of ground improvement techniques. The name was changed to the current name in January 1998 in light of recent technical and social needs. The field relating to ground improvement techniques is extremely broad, covering areas such as structure foundations, subgrades/roadbeds for roads and railways, tunnels and dams, slope protection and stabilization, lining of structures using water, landfill/marine ground, conservation of ground environments; and fields such as civil engineering, architecture, agricultural engineering, mine resources, and environmental sanitation. Furthermore, the academic and technical fields which serve as its foundation go beyond the applied engineering fields above, and require a wide range of basic knowledge in areas such as physics, chemistry, dynamics, biology, geology/mineralogy and landscaping. Therefore, the Committee is comprised of members specializing in various fields, and it has conducted investigations and research on ground improvement from a diverse range of perspectives.

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****　JSMS Committee on Wood and Wood-Based Materials　****


JSMS Committee on Wood and Wood-Based Materials was established in 1962 for the purpose of communicating with researchers and promoting research on wood and wood-based materials. We have worked actively by holding regular meetings and publishing a special issue every year since then. Our committee consists of approximately 80 members from a national research institute, a university, and a company dealing in wood and wood-based materials. Regular meetings are held 3-4 times a year as a rule, and reports of the meetings are sent to the absentees. Moreover, the JSMS Wood and Wood-Based Materials Committee Award is presented to a person who has brilliant academic achievements related to wood and wood-based materials every year.
Wood has supported our culture since ancient times and been used by human beings as construction materials and to make furniture, musical instruments, paper, etc. This human-friendly advantage that wood products possess has been established by their considerably old relationship with human life, and this relationship will never cease in future. On the other hand, wood is the most abundant biomass on earth; therefore, nowadays, the sustainability of wood has attracted the researcher's attention, and the use of wood as a biomass resource is under consideration. In order to develop new engineering technologies such as biomass energy conversion with chemical engineering, advanced functional wood composite materials, and highly durable wood-based materials, wood and wood-based materials science must be studied in collaboration with scientists working in different disciplines. Bearing this in mind, our committee consisting of members from varied backgrounds has played an important role in the progress of wood and wood-based materials science.

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****　JSMS Committee on Polymers in Concrete　****


The cement concrete which is the most mainly utilized construction material shows various excellent performances by using with various synthetic resin materials. The forms of combination between concrete and synthetic resin are: (1) Resin concrete (REC), polymer impregnation concrete (PIC) or utilization to the structural material as polymer cement concrete (PCC). (2) Utilization as materials for repair and strengthening of concrete structures such as surface treatment, crack injection, steel plate adhesion, patching and/or overlay. (3) Impregnation, painting, coating and/or utilization as a material for the lining which enhances durability, water interception and salt-preventive property, water repellents, abrasion resistance, etc.. (4) Utilization as structural adhesive in precast elements, etc. (5) Utilization as fiber reinforced plastic and continuous fiber reinforcement in the construction field. The synthetic resins are utilized in various ways as above, and various types of synthetic resin are available which are suitable for their use. However, there are many points in which the performance of this resin differs in the detail. Moreover, the performances of the synthetic resins are not yet fully controlled for the purpose of use. JSMS Committee on Polymers in Concrete was established in February, 1963 to investigate problems in use of synthetic resin for concrete structures, to discuss rational application of synthetic resin for concrete structures, and to develop test methods, guidelines and/or standards for use of synthetic resin for concrete structures. JSMS Committee on Polymers in Concrete organizes the JSMS Symposium on Concrete Structure Scenarios every year, where the Proceedings of the Concrete Structure Scenarios, JSMS is annually published. 60+ papers including 40+ reviewd ones (in Japanese) are included in the proceedings which discusses maintenance and management of concrete structures. The papers investigate assessment, inspection, deterioration prediction, evaluation & judgment, remedial actions such as repair, strengthening and upgrading, of existing concrete structures.

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****　JSMS Committee on Fracture Mechanics　****


JSMS Committee on Fracture Mechanics was founded in 1979 in order to discuss issues relating to fracture mechanics and fracture/strength of materials. Since then, the committee has been devoting to the development of fracture mechanics through discussions on the application of fracture mechanics, new concepts to deal with fracture problems, design and maintenance of structures based on fracture mechanics, and so on, and through the publication of Stress Intensity Factors Handbook, Vol. 1 to 5. The committee has recently extended its activities in the field of interface stress singularity relating to adhesion and coating. The activities of the committee are partly close to those of JSMS Committees on Fatigue, High Temperature Strength of Materials, Corrosion and Protection, Micromaterials and Reliability Engineering, which are also dealing with fracture/strength of materials.

The Committee Meeting has been held three or four times a year and The Symposium on Fracture Mechanics has been held every two years in order to share information on advanced technology and materials and to discuss wide-ranging topics concerning to fracture mechanics and fracture/strength of materials. The committee provides opportunities of communication for people in academic, industrial and government fields. At the committee meeting, management policy and plans proposed by the steering committee are also discussed and decided.

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****　JSMS Committee on Molecular Dynamics Simulation　****


The committee was established in October 1994 for inquiry and intercommunication in the research field of atomistic simulation of materials. The committee's name, "Molecular Dynamics Simulation Committee", appears to restrict its scope to simulations that explicitly treat constituent atoms or molecules. However, the committee's remit has broadened to include the activities of a cross-disciplinary community of researchers and companies who are interested in a wide variety of computational schemes at microscopic to macroscopic scales; it now even extends beyond the barrier between experimental and computational science. For example, among the hot topics that are within the scope of the committee are the following:
　(1)Prediction of properties of materials by ab initio molecular statics and dynamics calculations;
　(2)Development of real-space ab initio calculations based on the finite-element method;
　(3)Development and evaluation of interatomic potential functions;
　(4)Speed-up techniques, such as parallel computation, numerical integration, and the hybrid potential method;
　(5)The Monte Carlo method, cellular automata, and the genetic algorithm approach;
　(6)Multi-scale molecular dynamics simulations, the quasi-continuum method, and the homogenization method;
　(7)Discrete dislocation dynamics, smoothed particle hydrodynamics, and the phase-field method;
　(8)Nonlinear lattice dynamics, stability analysis, and chaos theory; and
　(9)Various experiments related to microscopic phenomena.
The committee usually organizes four regular meetings a year, each with several hours of invited lectures on focused topics given by inside or outside speakers. The committee also holds an annual symposium named "the Molecular Dynamics Symposium" that is open to nonmembers. Since 2002, awards for the best presentation have been given for the best oral presentation by a general participant and by a student participant: another award, founded in 2008, is given for the best poster presentation. The committee also organizes an annual two-day training seminar on ab initio calculation and classical molecular dynamics simulations; this includes an opportunity for the participants to test various commercial simulation packages. If you have any interest in the work of the committee, please contact us at md@md.jsms.jp.

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****　JSMS Committee on Micromaterials　****


JSMS Committee on Micromaterials concerns with mechanical behavior, processing, and development of new evaluation methods of micromaterials. Researches on micromaterials are important for the design and the evaluation of micro machines, electronic devices, and advanced composite materials those contain thin films and thin fibers. Activity of the committee includes committee meeting, symposium, special issue on Journal of the Society of Materials Science, Japan.

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