Dear All,

For months, I have tried to model a plate with circular hole which has the properties of hyper-elastic material (Ogden) but the results are still not promising compared to literature (Y Basar 1998).  The main problems are:

1. The maximum load I succeeded to apply was q=26, while literature had applied load up to 90. For q > 26, the analysis will terminate with errors such as too many attempt, excessive distortion etc.

2. The results I get for q<26 are not the same as literature. 

I attach my best result for your viewing.

Please see the attached file of the 1st announcement.

The present and past officers of the International Union for Theoretical and Applied Mechanics, the present and past presidents of the French National Committee for Mechanics, sadly announce the death of




Professor Paul Germain,


Honorary Secretary of the French Academy of Sciences


President of IUTAM 1988-1992


Vice-President of IUTAM 1992-1996


Leading scientist in the mechanical sciences




in Paris on 26 February 2009

Multiple, assistant researcher/research scientist/postdoctoral positions are available in a large, 4-year duration, Department of Defense program on “Release, Atmospheric Dispersal, and Environmental Fate of Liquid Agents”.  The effort is aiming to: (a) achieve a basic understanding of the physics of aero-breakup and dispersal of liquid agents in high-speed flows, (b) achieve a basic understanding of impact/spreading/absorption/reaction/evaporation of drops falling on various substrates, and (c) develop and validate computational tools covering the hierarchy of scales involved and purp

Australia is the host for the 9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics in 2010. Sydney is without a doubt one of the most beautiful cities in the world. It has a reputation for friendly people, a cosmopolitan lifestyle, wonderful shopping and world class entertainment. Our magnificent harbour, renowned Opera House and sunny beaches combine to make Sydney a unique destination.

http://portal.acm.org/citation.cfm?id=1467247.1467259

by Prof. David A. Patterson (Professor of Computer Science at U.C. Berkeley,Fellow and past president of ACM)

Viewpoint from a Berkeley professor after 32 years of mentoring Ph.D. students. Hope you enjoy as I do.

You may also find an earlier discussion thread in iMechanica interesting:

Learning to be a PhD advisor

The University at Buffalo (SUNY) seeks a tenure-track assistant professor in the broad area of multiscale modeling of the production, assembly, and properties of engineered nanoscale  materials, structures, or devices. Appointment at higher rank is possible in exceptional cases. For the details, please check the attachment.

Zahir Warsi, Professor Emeritus of Aerospace Engineering at Mississippi State University passed away on December 3, 2008.

Author of Fluid Dynamics:  Theoretical and Computational Approach (CRC Press), eminent scholar and scientist, his obituary can be found on the website of the American Academy of Mechanics:

http://www.aamech.org/obituary.html.

We know from fracture mechanics theories that fracture instability in a perfectly brittle material occurs when energy release rate (G) becomes equal or more than two times the surface energy (γ) of that material. The value of G = 2γ is known as fracture toughness Gc. This is the classical Griffith criteria of brittle fracture. Experimentally, however, we know that plasticity becomes eminent for most materials and this criteria does not work.