题目: Size effects in mechanics, materials science and engineering
Dr M.W. FU joined the Department of Mechanical Engineering, The Hong Kong Polytechnic University (HK PolyU) in Aug, 2006. In 1991 and 1994, he received the honorary awards of Outstanding Young Teacher and Outstanding Teacher from the Ministry of Aeronautic and Astronautic Industries of P.R. China. In 1992 and 1995, he was promoted to associate and full professor, respectively. Upon completion of his PhD study in the National University of Singapore in 1997, he joined the Singapore Institute of Manufacturing Technology as a senior research engineer in the same year. After joined the HK PolyU in 2006, he has secured 8 research projects from the General Research Fund (GRF), Innovation and Technology Fund from the Innovation and Technology Commission of Hong Kong Government, and the National Science Foundation of China after 2007. Prof Fu is also sitting in the Editorial Board or as a regional editor in some longstanding journals, which includes International Journal of Plasticity, Materials and Design, International Journal of Damage Mechanics, etc.
Although size effect has been aware of by Leonardo da Vinci and Gallileo Galilei as early as the 1500s and 1600s, all the observed size effects were generally believed to be attributed to the randomness of material strength. This view remains until the 1980s. Actually, size scaling ubiquitously exists in very physics and engineering domain and size effect thus become a quintessential issue to be considered and addressed. In this talk, an epistemological understanding of size effect and an insight into its affected behaviors and phenomena in various disciplines including mechanics, materials science and engineering will be presented. The challenges for in-depth exploration of size effects in different domains will be given and more scientifically needed researches are elucidated. The talk will give a panorama of size effect and its related understanding, and thus provide a basis for further exploration and study of this unique phenomenon.