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Open-source finite element code

Submitted by Petr Krysl on

Hello everybody,

I just wanted to let those interested in Matlab finite element development and educational environments that the successor to the SOFEA toolkit is now available at

http://hogwarts.ucsd.edu/~pkrysl/faesor

The toolkit now provides in addition to thermal and stress analysis (static and dynamic) also sample simulations from other fields, such as acoustics, nonlinear heat conduction analysis, electrostatics, small-strain plasticity, .... The toolkit now also includes an implementation of the Nodally Integrated Continuum Elements (NICE) which are quite effective for nearly incompressible mechanics problems.

The toolkit and the accompanying textbook are open-source and freely available. The book is also available in print.

pressurization test

Submitted by kiranta1987 on

I am doing a simulation of a Prestressed concrete containment vessel for
internal pressurization test. currently i have made a 3D concrete model
and embedded a reinforcing structure and tendons into it using embedded
region option. but during analysis, it is showing that ratio of
deformation speed to wave propagation speed exceeded 1 in some elements
and the job is getting aborted. someone pls help me figure out what
could be the reason. I have attached my input file for
reference......thank you....

Need urgent help...........................

Submitted by kiranta1987 on

hi everyone,

                  I am doing a simulation of a Prestressed concrete containment vessel for internal pressurization test. currently i have made a 3D concrete model and embedded a reinforcing structure and tendons into it using embedded region option. but during analysis, it is showing that ratio of deformation speed to wave propagation speed exceeded 1 in some elements and the job is getting aborted. someone pls help me figure out what could be the reason. I have attached my input file for reference......thank you....

Purchase ABAQUS licence

Submitted by Aaron Goh on

Is it possible to buy an ABAQUS licence (or token) from another institution?  In Malaysia and Singapore, the sales of ABAQUS appear to be controlled by WorleyParsons who charge rather exorbitant prices on the licenses - e.g. I got the student edition from the web for USD99 but in Malaysia, the price sold by WorleyParsons is 3+ times more expensive.  I am thinking whether I can pay another institution for some tokens to run jobs.  Thanks.

The origin of "Progressive Damage Methodology"

Submitted by Jameswei on

Greetings, 

Recently I have been indulging into loads of papers on "Progressive Damage Methodology".

I wondered based on what theory did the "Progressive Damage Methodology" intrigue so many researchers to unfold various kind of experiment and simulation, in other words, why do people have to study on this methodology?

Also, I was curious on the difference between "Cumulative Damage" and "Progressive Damage".

Can anyone here possibly give me some advice on the two questions?

 Faithfully,

James

Seismic Analysis

Submitted by SivaSrinivasKolukula on

Hi

     I am doing seismic analysis of Fluid filled cylindrical steel tanks using FEM. In this analysis I m supposed to find Base Shear and Overturning moment. Steel tank is thin shell and is flexible. For the complete loading of the shell I have its stress field i.e I have Nxx, Nxy, Nyy, Mxx, Mxy, Myy components of the thin shells middle surface. They are per unit length. Using these components how I can find Base Shear and OTM?

      Any reference/suggestion for this study....

Thanks in advance

Srinivas