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COMSOL, PDE, Pls help

Submitted by rya82 on

Hello,

     Iam trying to include the PDEs , ie current density equations in COMSOL, through physics-equation system...Is my path right? and if it is right, how to modify the equations? please somebody help me.

Thanks in advance..

rya

Symposium on Mechanics of Thin Film and Multi-layer Materials (IMECE), Nov. 13-19, Lake Buena Vista, FL

Submitted by Jizhou Song on

Abstract submission deadline: March 2, 2009 

To submit your abstracts to this symposium, select "Track 12 Mechanics of Solids, Structures and Fluids"; then select "Topic 12-26 Mechanics of Thin Film and Multi-layer Materials". 

Java for High-Performance Computational Engg. / Sciences?

Submitted by Ajit R. Jadhav on

In the past few days at iMechanica, there have been quite a few messages dealing with different aspects of programming, libraries and so on...

It would perhaps be timely, therefore, to ask:

Do you have any opinion about using Java in numerical analysis (NA) / FEM / CFD etc.---i.e., in computational engineering and sciences (CES)?

Do you have any experience or hard data concerning performance of Java vis-a-vis C++ or FORTRAN, esp. for large systems, or for high-performance applications? Any pointers?

Please leave a note... Thanks in advance...

Near-incompressible analysis

Submitted by Alejandro Orti… on

Hello all,

I am studying some simple finite elements for 2d near-incompressible analysis. Particularly, I am interested in the MINI element. It is basically a 3-node triangle element with nodal pressure and displacement degree of freedoms enriched by a bubble function. Could someone that has some experience with these elements point me out about advantages and drawbacks of using these type of elements?

Thanks,

Alejandro.

Self-consistent Modeling of plastic and viscoplastic polycrystalline materials

Submitted by T.ZENG on

I am a freshman of researching the macro response of  metals with micromechanics scheme. Now,I have to build a  self-consistent modeling of plastic and viscoplastic for polycrystalline materials. However, it seems difficult for me as I have little knowledge of polycrystalline and its mechanics propertities.

If you know some systematic books or papers about my research area. please let me know. Your kindness will be great appreciated!!!

concrete damage plasticity model in abaqus

Submitted by chakradhara rao on

I am doing plain concrete beam subjected to low velocity impact model in abaqus. for model the concrete i have choosen concrete damaged plasticity. Is it the proper selection for model the concrete under dynamic loading. If it is correct, how to get the tensile behaviour of concrete (yiled stress, cracking starin) from uniaxial test data (yiled stress, inelastic strain). Please help me if any body is having the idea on this.