應浙江大學應用力學研究所的邀請，以色列特拉維夫大學（Tel Aviv University）Diane & Arthur Belfer講座教授Leslie Banks-Sills訪問我所，并于6月24日上午10:30在浙江大學玉泉校區教12-118會議室作了題為“Interface Fracture of Homogeneous Materials and Laminates – Theory and Experiment”的學術報告。
斷裂力學是上世紀中期發展起來的固體力學的一個新的分支學科，考慮了固體或結構中固有缺陷的影響，克服了傳統強度理論的不足，為船艦、飛機、大型基礎設施等現代工程的可靠性設計和壽命評估奠定了重要理論基礎。
Banks-Sills教授在報告中介紹了其課題組在界面裂紋分析方面的系統研究，包括傳統的兩相均勻材料的界面裂紋和現代復合材料的界面裂紋。她闡述了通過引進特定的長度參量以規避界面裂紋尖端應力強度因子的“奇怪”量綱的研究思路，并從實驗上予以了證實。這一長度參量不依賴于具體的裂紋長度，但與斷裂模式（即I型、II型或III型）有關，可能屬于一種內廩的材料尺寸，其具體的物理意義還需要進行深入的研究。Banks-Sills教授還介紹了其課題組在壓電陶瓷斷裂方面的研究工作，并期望能夠在壓電陶瓷的三維斷裂研究上與應力所相關教師進行合作。
報告吸引了眾多老師和同學參與，引起了熱烈的討論。Banks-Sills教授在正式報告之前也介紹了以色列的大致情況，使在座的師生有了更好的了解。
附：報告人簡介
Professor Leslie Banks-Sills holds the Diane and Arthur Belfer Chair of Mechanics and Biomechanics at Tel Aviv University since November 2006. She is a Guest Professor at Lund University where she held the Lise Mietner Chair in 2006 and an Adjunct Professor at Cornell University. She serves on the editorial boards of Engineering Fracture Mechanics, International Journal of Fracture, International Journal of Structural Integrity and Strain. She has consulted for various organizations in Israel, as well as for NASA, regarding problems of fracture in structures.
Professor Banks-Sills completed a B.A. degree in mathematics at Queens College of the City University of New York in 1965, an M.Sc. degree in engineering mechanics from the University of Michigan in 1973 and a Ph.D. degree in engineering from Harvard University in 1977. After carrying out a post-doctorate at Brown University, she joined the Faculty of Engineering at Tel Aviv University in 1979. From 1993 through 1997, and again from 2001 through 2005, she served as Chairman of the Department of Mechanics, Materials and Structures. She is Director of the Dreszer Fracture Mechanics Laboratory at Tel Aviv University.
She received the Teaching Excellence Award in Mechanical Engineering, Tel Aviv University (1995-1996), the Teaching Excellence Award, Faculty of Engineering, Tel Aviv University (1998-1999), and the Teaching Commendation Award in Mechanical Engineering, Tel Aviv University (2010-2011). She was elected as an Honorary Fellow of the International Congress of Fracture in 2005 and served on the Executive Board of this organization. The Technion in Haifa awarded her the Hanin Prize for her contributions to aeronautical engineering in 2006. She is the recipient of the 2006 Honorary Membership to ESIS (European Society of Structural Integrity) for her outstanding original technical contributions to fracture mechanics and good service to the international fracture mechanics community. She was elected as a Fellow of the American Academy of Mechanics in 2008. In 2006, she was elected one of two Vice Presidents of ESIS and is currently the President (2010-2014). In addition, she is a Vice President of EURASEM (European Society of Experimental Mechanics) since 2008.
Her research interests include the use of analytical, numerical and experimental methods to treat fracture problems which include homogeneous materials, bonds, interfaces and composites. In particular, recently she and her group have been examining the propagation of cracks in piezoelectric materials, delamination of cross-ply and woven composites and the effect of carbon nano-tubes in polymer materials.
She has participated in over 60 international conferences and been on the scientific committees of many of them. She has guided over 40 Master’s, Ph.D. and post-doctoral students many of whom hold key positions in academia and industry. She has published over 100 papers in international journals and edited the book Advances in Mathematical Modeling and Experimental Methods for Materials and Structures, The Jacob Aboudi Volume, Springer, The Netherlands (2010) with Dr. Rivka Gilat.
Banks-Sills教授在作學術報告
Banks-Sills教授在介紹以色列
（應用力學研究所供稿）
