應浙江大學應用力學研究所的邀請，國際熱應力雜志《Journal of Thermal Stresses》主編，美國羅切斯特理工大學（Rochester Institute of Technology）榮休教授R. B. Hetnarski于6月9日下午3:30在浙江大學玉泉校區教12-118會議室作了題為“Coupled Thermoelasticity – Problem for a Space”的學術報告。
熱應力分析是固體力學的重要研究內容，不僅在機、電、土、化等傳統工業的結構和系統設計中發揮著巨大的作用，在航空、航天、核工程、微機電系統、生物醫學等新型工程設計中也是必不可少的內容。特別是高速、微型化等應用對熱應力分析提出了更高的要求，需要更精確的理論和有效的分析方法。
Hetnarski教授首先簡要分析了經典非耦合熱彈性理論的特點，指出其存在兩個明顯的缺陷，即（1）無法解釋諸如金屬試件在拉伸過程會發燙的現象，和（2）熱的傳播速度表現為無限大。第一個缺陷可以由耦合的熱彈性理論予以克服，通過增加適當的耦合項，理論上既可以預測由熱致力，也可以預測由力致熱。第二個缺陷可以由修改經典的傅立葉熱傳導方程加以克服，使其從拋物型改成雙曲型。在此非經典熱彈性框架內，Hetnarski教授介紹了他提出的基于算子理論的數學推導方法，可以方便地在頻域內獲得點源荷載作用下的Green函數，并給出了若干有趣的熱應力分析結果。他在報告中也特地指出了《Journal of Thermal Stresses》的標志圖案就來自其早年基于非經典耦合熱彈性理論的計算結果。
報告吸引了眾多老師和同學的參與，引起了廣泛興趣。大家從不同的角度提出了很多問題，討論十分熱烈。
R. B. Hetnarski教授不僅是熱應力雜志的創刊人，也是國際熱應力大會（International Congress on Thermal Stresses）的發起人。第十屆國際熱應力大會剛于2013年5月31日-6月4日在南京成功舉辦，我所陳偉球教授應邀作了大會報告。下一屆熱應力大會將于2015年在加拿大舉行。
附：報告人簡介
Dr. Richard B. Hetnarski, PE, is professor emeritus in the Department of Mechanical Engineering at Rochester Institute of Technology, Rochester, New York. He received his MS degree in mechanical engineering from Gdansk University of Technology, Gdansk, Poland, in 1952; his MS degree in mathematics from the University of Warsaw, Warsaw, Poland, in 1960; and his degree of doctor of technical sciences from the Institute of Fundamental Technological Research of the Polish Academy of Sciences in Warsaw in 1964.
In the period 1964–1965, he held postdoctorate fellowships at Columbia University in New York and at Northwestern University in Evanston, Illinois. In Poland, he worked in the industry, including at the Institute of Aviation in Warsaw (1955–1959) and at the Institute of Fundamental Technological Research of the Polish Academy of Sciences (1959–1969).
In 1969, Dr. Hetnarski and his family emigrated from Poland to the United States, where he became visiting associate professor in the Department of Theoretical and Applied Mechanics at Cornell University in Ithaca, New York, for the period 1969–1970. From 1970 to 1998, he held positions in the Department of Mechanical Engineering at Rochester Institute of Technology, first as New York State Science and Technology Foundation Distinguished Visiting Professor (1970–1971), then as professor (1971–1992), and finally as James E. Gleason Professor (1992–1998).
In 1979, Dr. Hetnarski held a summer faculty fellowship at the NASA Lewis Research Center in Cleveland, Ohio. Subsequently, he become a NASA employee, and as an aeronautical engineer worked at NASA until the end of January 1980. Later, he spent five months as visiting professor at the University of Paderborn in Germany. He also taught a UNESCO sponsored course on thermoelasticity at the International Centre for Mechanical Sciences in Udine, Italy.
Dr. Hetnarski is the founder and president of the International Congresses on Thermal Stresses (ICTS). These Congresses are held every two years, consecutively on three continents.
Dr. Hetnarski has been active in research, publishing, translating, and editing. He is the author of many papers on mechanics and mathematics. In 1978, he founded the Journal of Thermal Stresses, and has been its editor-in-chief ever since. He served for 13 years (1988–2001) as an associate editor of Applied Mechanics Reviews. He is also the author of three books, including two textbooks: Thermal Stresses (by N. Noda, R. B. Hetnarski, and Y. Tanigawa), 2nd edn., Taylor & Francis, Boca Raton, FL, 2003; and Thermal Stresses—Advanced Theory and Applications (by R. B. Hetnarski and M. R. Eslami), Springer, Berlin, Germany, 2009. He has translated three books from Russian, from German, and from English into Polish, and one (with M. Piterman) from Russian into English. He has also edited seven books on mechanics, including the five-volume Thermal Stresses handbook, which was published by Elsevier in Amsterdam and by Lastran Corp. in Rochester during the period 1986–1999.
During his tenure at Rochester Institute of Technology, Dr. Hetnarski served as a consultant to the U.S. Air Force at Wright-Patterson Air Force Base in Dayton, Ohio, and to a number of industrial companies in the Rochester area. He also served as an expert witness in numerous legal product liability cases.
Hetnarksi教授與師生在交流
Hetnarksi教授在植物園
（應用力學研究所供稿）
