Blog posts

A new theory of stress?

Submitted by Biswajit Banerjee on Tue, 07/22/2008 - 04:14

I was browsing the discussion page for Stress in Wikipedia when I came upon this interesting comment:

Refutation of Cauchy stress

The theory of stress based on Euler & Cauchy is now refuted. The profound incompatibility of this theory with the rest of physics, especially the theory of potentials and the theory of thermodynamics, has been documented in

Ph.D position at EPFL-LSMS, Switzerland

Submitted by anciaux on Mon, 07/21/2008 - 10:46

Graduate assistantship positions are available in the Computational olid Mechanics Laboratory (http://lsms.epfl.ch/) at the Ecole olytechnique Fédérale de Lausanne (http://www.epfl.ch/).

We are interested in highly motivated Ph.D. candidates with an academic background (B.S. and M.S.) in either Mechanical Engineering, Civil ngineering or Computational Materials Science.

Surface and Grain boundary

Submitted by Xu Zhang on Mon, 07/21/2008 - 10:18

research

Surface:

If it's a free surface, the dislocation can penetrate through the surface easily, but, if it's a coating or oxide layer, it will be hard for dislocation to glid out of the surface

Grain boundary:

In discrete dislocation dynamic simulation, some authors take grain boundary as a impenetrable, such as a rigide wall, But in other papers, grain boundary was thought to be a penetrable wall.

So,Is there somthing or simillar property for us to derive.

ANSYS 11.0

Submitted by Brandon Ng on Mon, 07/21/2008 - 08:55

J-W-L Parameters for High Explosives

Submitted by bdmmech on Mon, 07/21/2008 - 08:45

research

explosion engineering

Hi !!! all

I really struglling to get the JWL and Lee Traver EOS parameters for RDX .

If anybody can help seriously I will be highly obliged. Atlest the EOS parameters of Comp-A5 or PBX 9604 having higher percentage of RDX (98.5 % and 96% respectively) will be sufficient.

How can I creat new beam element in Ansys

Submitted by beel on Mon, 07/21/2008 - 06:59

research

Just like the title!

franc3d and ansys

Submitted by bulls8862003 on Mon, 07/21/2008 - 01:35

I am studying crack simulations.I am familar with ansys,and i know franc3d files could output into ansys files ,but i don't know how. I just get .fem files from franc3d. But how could .fem files be read into ansys? Could anyone give me some details? I'll be very grateful.

NAFEMS NA 2008 Regional Summit: NAFEMS 2020 Vision of Engineering Analysis and Simulation (Hampton, VA - Oct. 29-31, 2008)

Submitted by nafemsNA on Sun, 07/20/2008 - 21:45

Hi everyone,

I just wanted to let everyone know about the upcoming NAFEMS North American 2008 Regional Summit: NAFEMS 2020 Vision of Engineering Analysis and Simulation. This is an excellent opportunity for academic researchers, industrial practitioners and software developers to meet for mutual benefit.

For those of who you not familiar with NAFEMS, it is a non-profit, vendor neutral, engineering analyis community.