Thoughts on digital scholarship in engineering
The Website CreateChange has recently done a Q&A with me. Here is the transcript.
Blog posts
Musings on continuum thermodynamic formalism and (yet another) damage model
A technique for setting up generalized continuum theories based on a balance law and nonlocal thermodynamics is suggested. The methodology does not require the introduction of gradients of the internal variable in the free energy. Elements of a generalized damage model with porosity as the internal variable are developed as an example.
New perspectives in plasticity theory
A field theory of dislocation mechanics and plasticity is illustrated through new results at the nano, meso, and macro scales. Specifically, dislocation nucleation, the occurrence of wave-type response in quasi-static plasticity, and a jump condition at material interfaces and its implications for analysis of deformation localization are discussed.
Opening for new Ph.D. students in the computational mechanics group, University of Iowa
The computational mechanics group at The University of Iowa, led by Professor S. Rahman, is looking for new Ph.D. students, who are capable of and interested in performing high-quality graduate research in stochastic dynamics and want to pursue academic/research career afterwards. The research, supported by NSF and others, entails developing new decomposition methods for solving general random eigenvalue problems encountered in engineering and sciences. The topic covers dynamics (mechanics), stochastics, and computational methods.
Permanent position available / thin film and surface mechanics
Position available / thin film and surface mechanics
“Surface du Verre et Interfaces”, a joint CNRS/Saint-Gobain research laboratory in Paris, is hiring a research scientist to strengthen its activities on thin films mechanics. For more information:
http://www.saint-gobain-recherche.com/svi/en/pages/StaffPositions.htm
Dr Etienne Barthel CNRS/Saint-GobainSurface du Verre et Interfaces BP 135 F-93303 Aubervilliers Cedex France
Journal Club Theme of October 2007: Irreversible thermodynamics of continuous media
The second half of the last century saw exciting developments in formulating mathematically rigorous yet physically well founded theories for irreversible thermodynamics in a continuum mechanics framework. The development took place within communities with widely different scientific backgrounds and motivations. In general, two divergent schools existed (and possibly exit): one of them having its roots in the works of I. Prigogine and S. R. de Groot, and the other initiated by C. Truesdell, B. D. Coleman and W. Noll.
Potential for Strain energy
Hi all,
When a conservative force does work, it is independent of the path, we define the potential and work done is given by - (change in potential).
We define potentials for gravitational force, electrical force etc...
Assuming the body is linear elastic, internal forces, cause stresses in a body, are also conservative forces, whose work (strain energy) is independent of the path. Can we define potential for such internal forces? If so, we can calculate strain energy = -(change in potential).
You may kindly explain this.
Hello
Hi,
I am currently working as a Design Engineer-CAE in Bangalore,India.Presently interested in doing a MS/Mtech in the field of Mechanical Design and analysis through a distance learning program/part time course.It would be great if someone suggests an university(in India/abroad) where these kind of courses are offered.
Regards,
Ankita
Alex Epstein's introductory entry for ES 240
Prior courses in solid mechanics: "Mechanics of Solids and Structures" was FBD's and strength of materials, and "Special Topics in Mechanical Engineering" focused more on building and aerospace structures. But no prior solid mechanics course, per se.
Undergraduate major: Engineering, concentration in Materials Science