Prof. Yi-Long Bai

Lion

Contact

  • Email: baiyl#lnm.imech.ac.cn
  • Phone: +86-10-82543939
  • Addr.：No. 15, Beisihuanxi Road, Beijing, 100190, China

Brief Introduction

Prof. Bai was born on December 22, 1940 in Xiangyun, Yunnan Province. He graduated from the Chinese University of Science and Technology in spring of 1964. In the same year, he became a graduate student in the Institute of Mechanics, Chinese Academy of Sciences. After graduation, he worked in the Institute for over thirty years. During the period of 1979-1981, he was an academic visitor at Oxford University as well as Cambridge University.

He was the chairman of academic committee of the Institute of mechanics, CAS, the director of National key Laboratory for Non-linear Mechanics, CAS, the president of Chinese Society of Theoretical and Applied Mechanics and the director of the Department of Mathematics and Physics, the National Natural Science Foundation of China. He was elected as a member of the Chinese Academy of Sciences in 1991. He was elected as a member of the European Academy of Sciences in 2003.

In eighties, Prof. Bai made his contribution to the theory of thermo-mechanical shear ocalization. He derived the model equations governing the thermo-plastic shear deformation and then found that the instability threshold can be formulated with a dimensionless parameter consisting of plastic work, temperature rise, work hardening and thermal softening. Also, it was derived that the thermal plastic shear band is a kind of dissipative structure predominated by coupling plastic work rate and heat diffusion. In recent years, Bai and his colleagues initiated a new technique of submicro-second stress pulse and developed a model equation of microdamage evolution and some special solutions to it. This founded the experimental and theoretical base of the statistical meso-damage mechanics. Moreover, They established the idea of evolution induced catastrophe and explained sample specific behavior and trans-scale sensitivity in failure of materials.

He has published more than 100 academic papers. His two English monographs “Ductile Fracture and Ductility” and “Adiabatic Shear Localization” ( co-authored by B. Dodd) were published by Academic Press and Pergamon respectively. He has won many prizes such as the second prize of National Natural Science Award, Science & Technology Progress Award of He-Liang-He-Li Fund, John Rinehart Award, Tan Kah Kee Science Awards 2010, etc. He was invited to deliver lectures in universities and national Labs in USA, UK, etc. and at international conferences.

Biography

  • 1940, Born in Xiangyun, Yunnan Province.
  • 1958—1963, BS in the Chinese University of Science and Technology.
  • 1963—1966, MS the Institute of Mechanics, Chinese Academy of Sciences.
  • 1979—1980, Academic visitor at Oxford University.
  • 1980—1981, Academic visitor at Cambridge University.
  • 1966—1978, Research assistant in the institute of Mechanics, CAS.
  • 1979—1981, Research associate in the institute of Mechanics, CAS.
  • 1982—1985, Associate Professor in the institute of Mechanics, CAS.
  • 1986, Professor in the institute of Mechanics, CAS.
  • 1987—1994, Deputy Director, institute of Mechanics, CAS.
  • 1988, Deputy Director, LNM, institute of Mechanics, CAS.
  • 1993, Director, LNM, institute of Mechanics, CAS.
  • 1991, Elected as a member of the Chinese Academy of Sciences.
  • 2003, Elected as a member of the European Academy of Science

Selected publications

  1. Bai Y.L.，Xia M.F.，Ke F.J. and Bai J.，(1998)，Dynamic function of damage and its implications. Int. J. Key Engineering Materials，145～149，411～420
  2. Bai Y.L.，Han W.S. and Bai J.，(1997) A statistical evolution equation of microdamage and its application. ASTM STP 1315，150～162
  3. Han W.S.，Xia M.F.，Shen L.T. and Bai Y.L.(1997) Statistical formulation and experimental 　determination of growth rate of micrometre cracks under impact loading. Int. J. Solids and Structures，34，2，2905～2925
  4. Xia M.F. Ke F.J.，Bai J. and Bai Y.L.，(1997) Threshold diversity and trans-scales sensitivity in a finite nonlinear evolution model of materials failure. Physics Letters A
  5. Bai Y.L.，Lu C.S.，Ke，F.J. and Xia M.F.(1994) Evolution induced catastrophe. Physics Letter A，185，196～200
  6. Bai Y.L.，Ling Z.，Luo L.M. and Ke F.J.(1992) Initial development of microdamage under impact loading ASME Trans.，J. Appl. Mech.，59，622～627
  7. Bai Y.L. and Dodd，B.，(1992) Adiabatic shear localization. Pergamon Press，Oxford，pp.379
  8. Xia M.F.，Ke F.J.，Lu Y.H. and Bai Y.L.(1991) Effects　of stochastic extension in ideal microcrack system.　Science in China A，34，579～589
  9. Bai Y.L.，Ke F.J. and Xia M.F.(1991) Formulation of statistical evolution of microcracks in solids. Acta Mechanica Sinica，7，59～66 Ke F.J.，Bai Y.L. and Xia M.F.(1990) Evolution of ideal microcrack system. Science in China A，33，1447～1459