I need a johnson-cook plasticity model umat in abaqus。Any help will be appreciate。thanks
National Academy of Engineering Elects
66 Members and 10 Foreign Associates
WASHINGTON — The National Academy of Engineering (NAE) has elected 66 new members and 10 foreign associates, announced NAE President Charles M. Vest today. This brings the total U.S. membership to 2,254 and the number of foreign associates to 206.
Professor David Barnett of Stanford University will receive the A.C. Eringen Medal from the Society of Engineering Science (SES). The prize is awarded in recognition of sustained outstanding achievements in Engineering Science. Professor Barnett will receive his award during the 49th Annual Technical Meeting of the Society of Engineering Science to be held at Georgia Institute of Technology from October 9-12, 2012.
Professor Markus J. Buehler of MIT will receive the 2012 SES Young Investigator Medal from the Society of Engineering Science (SES).
Professor Zhigang Suo of Harvard University will receive the the William Prager Medal from the Society of Engineering Science (SES). The award is made in recognition of his outstanding research contributions in Solid Mechanics. Professor Suo will receive his award during the 49th Annual Technical Meeting of the Society of Engineering Science to be held at Georgia Institute of Technology from October 9-12, 2012.
Professor Kyung-Suk Kim of Brown University will receive the 2012 Engineering Science Medal from the the Society of Engineering Science (SES). The prize, which consists of a plaque and a check for $2000, is awarded in recognition of a singularly important contribution to Engineering Science. Professor Kim will receive his award during the 49th Annual Technical Meeting of the Society of Engineering Science to be held at Georgia Institute of Technology from October 9-12, 2012.
2012 BENJAMIN FRANKLIN MEDAL IN MECHANICAL ENGINEERING
Zvi Hashin, Ph.D.
Tel Aviv University
Tel Aviv, Israel
Citation: For groundbreaking contributions to the accurate analysis of composite materials, which have enabled practical engineering designs of lightweight composite structures, commonly used today in aerospace, marine, automotive, and civil infrastructure.
The Rodney Hill Prize for 2012 is awarded to Professor Huajian Gao of Brown University, USA.
This prize, which consists of a plaque and a check for $25,000 (twenty-five thousand US Dollars), is to be awarded in recognition of outstanding research in the field of solid mechanics. The prize is to be awarded every 4 years, to coincide with the quadrennial International Congress of Theoretical and Applied Mechanics (ICTAM). The first prize was awarded at ICTAM 2008 in Adelaide.
Francis Charles Moon is named the 2012 Thomas K. Caughey Dynamics Award Winner.
The Thomas K. Caughey Dynamics Award was established in 2008 and is conferred in recognition of an individual who has made significant contributions to the field of nonlinear dynamics through practice, research, teaching, and/or outstanding leadership.
The Award, which includes a medal, a plaque, and an honorarium of $1,000, will be presented at the AMD Banquet, tentatively scheduled on Tuesday, 13 November 2012, during the ASME International Mechanical Engineering Congress and Exposition, to be held in Houston, Texas, 9-15 November 2012.
David J. Benson is named the 2012 Ted Belytschko Applied Mechanics Award Winner.
The Applied Mechanics Award was established in 1988 by the ASME Applied Mechanics Division. The Award was renamed the Ted Belytschko Applied Mechanics Award in 2008. The Award is given to an outstanding individual for significant contributions in the practice of engineering mechanics; contributions may result from innovation, research, design, leadership or education.
The Young Investigator Award was established in 1998 by the ASME Applied Mechanics Division. The Award was renamed the Thomas J.R. Hughes Young Investigator Award in 2008. The Award recognizes special achievements in Applied Mechanics for researchers under the age of 40.
Applied Mechanics Division Honors & Awards Banquet, 15 November 2011, Hyatt Regency, Centennial Ballroom A&B, Third Level.
Thank you, Ares, for your kind introduction. I am greatly honored to have my name added to the list of Timoshenko Medalists. However, receiving the Timoshenko Medal has a down side. I'll describe the down side through a story told by Jean-Baptiste Leblond. At the circus in Imperial Rome a slave was thrown to the lions. The lion stalked the slave and then attacked. As the lion jumped on him the slave grabbed the lion's mane and whispered in its ear. To the crowd's amazement the lion slinked off into a far corner of the arena and sat down. The Emperor called the slave over and said “If you tell me what magic you worked I'll give you your freedom.” The slave replied “It wasn't magic. I just told the lion if he ate me he'd have a good meal but then he'd have to give an after dinner speech. “
Fortunately for me, many previous Timoshenko after dinner speeches are available on iMechanica. I will follow several of those and talk about my life in mechanics. Before I start on that, I want to mention four mechanicians who have had an enormous influence on my professional life as well as having greatly enriched my personal life: John Hutchinson, Viggo Tvergaard, Jim Rice and Erik van der Giessen. There is not enough time to detail my debt to them.
My life in mechanics began my senior year at the University of Pennsylvania. I took a course in continuum mechanics from Hsuan Yeh who was Dean of the Towne School. The course was so interesting that I decided that was what I wanted to study in graduate school. I went to graduate school at Harvard and was very lucky that a young faculty member named John Hutchinson agreed to be my thesis adviser. My PhD thesis involved the finite strain, finite element analysis of a two dimensional periodic array of circular holes (motivated by the pioneering ductile fracture studies of Frank McClintock and Jim Rice). This initiated me into two emerging developments in solid mechanics: finite element methods and materials mechanics. As John Hutchinson remarked in his Timoshenko Medal address, we did not realize we were participating in a revolution.
Professor John W. Hutchinson, of Harvard University, will receive the 2012 Ludwig-Prandtl-Ring. The award is the highest honor bestowed by the Deutsche Gesellschaft für Luft- und Raumfahrt, the German Society for Aeronautics and Astronautics. Ludwig Prandtl was a great pioneer of modern Aerodynamics. The Ludwig-Prandtl-Ring is awarded annually to the maximum of one individual for outstanding contributions to Aeronautics and Astronautics.
With deep sorrow we write to convey the sad news that Hassan Aref has just passed away. According to an email from Ishwar Puri, Head of the Department of Engineering Science and Mechanics, of Virginia Tech, Professor Hassan Aref went on an extended weekend visit to his home in Illinois on Thursday night. He died there on Friday, sitting in his chair.
The Applied Mechanics Division seeks nominations for the awards listed below. All awards are international. Each nomination should include a nomination form and 4-5 letters of support, as described at http://www.asme.org/Governance/Honors/SocietyAwards/Nominate.cfm. Each nomination should be emailed as a single PDF file to the Chair of the Applied Mechanics Division, Ares Rosakis (firstname.lastname@example.org) by 5 November 2011. This deadline is firm. Nominations submitted after this deadline will be considered for the subsequent award year.
Katia Bertoldi, of Harvard University, has graciously accepted our invitation to be Editor of the iMechanica Journal Club. Katia has a knack to organize really interesting and inspiring symposia and workshops. Here are two examples:
Katia is a dynamic and energetic researcher. In addition to working on problems of broad interest to mechanicians, she works effectively with industries, and with people in areas not in traditional mechanics. She is exceptionally close to students.
iMechanica has now over 26,800 registered users. We are excited that Katia will take this leadership role, and bring iMechanica users together to discuss mechanics problems of the day.
New York, 6 December 1979. First of all, I am flattered and pleased to have the association with the proud name of Timoshenko. Over the years, my respect for him has grown, as I have gained appreciation of how much he did to upgrade the education of mechanics, in engineering. The trend which he helped initiate has continued so that, today, his works seem rather naive and unsophisticated. In part, this is naturally associated with growth on the subject. It might also reflect some good judgment on his part. There are limits to kinds of changes which rather conservative professions will accept. Such need some prodding, if they are to avoid becoming obsolete. Collectively, those of us here represent a kind of activity which we call Applied Mechanics. Like social clubs, it has a kind of formal structure of organization, or we would not be here tonight. At least some like to think of it as more than a club, a profession or something like it. As a profession, it has some responsibility to pinpoint or generate the interesting and important problems, and to find ways to bring to bear the best talent to solve these. Where it fails, the profession will lose ground to another which is more effective. Times have become harder, so we can ill-afford to lose ground, and we should be more aggressive in finding new turf. I would like to reminisce about personal experiences, to illustrate these points.
Particularly, I remember two previous occasions when Ronald Rivlin served to introduce me. One was for a lecture which I gave at an ASME meeting in Atlanta. Afterward, he opined that it would be a good idea if my next performance took the form of mime. Tonight, I shall ignore this sage advice to keep my mouth shut. The other goes back many years, when I was a graduate student in mathematics, at Indiana University. Then, it was not him personally, but his research which was involved. I was not so interested in mathematics, per se, but in what could be done with it. Available courses in continuum mechanics interested me more, but didn't quite fit the bill. During my last year, Clifford Truesdell joined the faculty, and gave a course on general continuum mechanics, covering about what was later published in his now well-known article, "The Mechanical Foundations of Elasticity and Fluid Dynamics". I was excited by Rivlin's imaginative work on rubber elasticity and non-Newtonian fluids, becoming hooked on the subject. I then moved to the Naval Research Laboratory which was, for a time, a center of the activity. It is still pleasant to remember the heated but friendly arguments concerning the foundations of continuum physics, with Rivlin and Richard Toupin, particularly. Imaginative work can induce young people to enter into a field, if they learn of it. Rivlin's work got me involved but, except for Truesdell, I might not have encountered it.
G. Ravichandran, John E. Goode, Jr. Professor of Aerospace and Professor of Mechanical Engineering, and Director of the Graduate Aerospace Laboratories (GALCIT) has been selected to receive the Chevalier de l'ordre des Palmes Académiques, which is the Knight grade of the French Republic's Order of Academic Palms. Founded by Napoleon in 1808 to honor educators and scholars, this distinction recognizes eminent personalities who have made significant contributions to the development of French culture, science, and education.
Elsevier Limited has established a prize named The Rodney Hill Prize in Solid Mechanics. This prize, which consists of a plaque and a check for $25,000, is to be awarded in recognition of outstanding research in the field of solid mechanics. The prize is to be awarded every 4 years, to coincide with the quadrennial International Congress of Theoretical and Applied Mechanics (ICTAM). The first prize was awarded at ICTAM 2008 in Adelaide and the second will be awarded at the ICTAM 2012 in Beijing.
Huajian Gao, Walter H. Annenberg Professor of Engineering at Brown University, has been selected to receive the 2011 Charles Russ Richards Memorial Award from the American Society of Mechanical Engineers (ASME) for outstanding achievements in mechanical engineering 20 years or more following graduation. Formal presentation of the award is scheduled to take place during the ASME International Mechanical Engineering Congress and Exposition, to be held in Denver, Colorado, from November 11-17, 2011.
Alan Needleman has been a leading innovator in developing the mechanics of large plastic deformation and fracture. His career has been intertwined with the rise of the field of computational solid mechanics. To this field he has made many significant and lasting contributions, usually as the first to demonstrate that computational approaches are both feasible and likely to yield insight.
Needleman performed the first finite element calculations of void growth and coalescence (in early 1970's), of necking in tensile bars (in 1972), of debonding using models which embed cohesive zones (in 1983), and ductile crack growth using models which simulate void nucleation, growth and coalescence (in the early 80's). There are more major contributions. He was one of the first to perform accurate numerical computation of the development of shear band localizations in realistic geometries, and the pictures of emerging bands which came out of the studies where widely regarded as "classics". He has simulated crack growth patterns, including bifurcation and branching, in the dynamic fracture of brittle materials. Most recently, he originated and still drives the effort to development computational methods to predict macroscopic stress-strain behavior based on discrete dislocation mechanics. In all these cases, his primary contribution has been to lead the way and to demonstrate the feasibility and power of computational approaches to the particular phenomenon.
Frank A. McClintock, Professor Emeritus in the Department of Mechanical Engineering at MIT, passed away on Feb. 20, in the Briarwood Health Care facility in Needham, Mass. at the age of 90.
After getting his Ph.D. from Caltech in 1950, Frank (MIT ’43, SM ’43) was named assistant professor at MIT and served at the Department of Mechanical Engineering until he retired in 1990 and became professor emeritus.
George Bugliarello, president emeritus and former chancellor of Polytechnic Institute of New York University (NYU-Poly), an acknowledged visionary who brought about significant changes in engineering and education, died after a short illness on February 18. He was trained in hydrodynamics and civil engineering. His lifelong investigation was how natural, mechanical, information and energy systems affect society.