Does anyone know any software that can generate x-ray diffraction pattern for polymer? I used to have Cerius2 which can do the job very well, but unfortunately the license expired some months ago and I am looking for some alternative software that can do similar job. Right now I have all the structures saved in .msi format. Any suggestions would be appreciated, thanks a lot!
Prof Dolbow/Prof N. Sukumar/Someone working in this field
While I was going through your(Prof. Dolbow's) EFG program using MATLAB for 2D problem, I could not understand why classical anlytical equations for displacement were used in taking care of displacement boundary conditions(step no.11, forming q vector and G matrix).I feel that there is something wrong here. We resort to computational methods when analytical solutions are not available.What shall we do in such situations?Others may also help me to understand this.
i am trying to use Abaqus/Explicit to simulate a sharp penetration using ALE formulation included in Ver. 6.6, but what ever i do the remeshing module doesn't work. if any body has any information and experience about this kind of simulation i would be pleased to use it as a guid in my analysis.
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I am new to this this forum. I salute the founders, administrators and content providers of imechanica for putting up such a useful forum. I work on finite element anaylsis of large deformation and contact problems, in particular metal forming and tribology.
June 14, 2007, Materialise released a new and improved version
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I want to use LSDYNA to model a detonation process involving fluid structure interaction. A solid structure is embeded in a viscous fluid media. Due to symmetry of the model, a quarter of the model is analysed. So my question is
1) How to model the symmetric condition in the Euler element domain? since the Euler meshes is fixed, it seems applying constraint on the nodes in the symmetric plane is meaningless.
2) How to model the infinite boudanry condition in the free surface of the fluid Euler domain?
I’ve been working with SPF analysis
recently. I followed the Abaqus example to solve my problem. But the result for
my pressure cycle isn’t as expected. It should have increased step by step from
the initial stage as in the real process. If it is possible, I will thank any
suggestions from whom related to this kind of simulation.
I recently came across this free software - OOF2 on the nist website: http://www.ctcms.nist.gov/oof/oof2/index.html I was basically looking for analyzing the effect of microstructure on the stresses in coatings, and a friend of mine mentioned this software. Since it works only on Unix or Linux (and Mac) I have not been able to install it on my PC...Have a Mac on which i will try it out soon. Will post my experience when I start using it. In the meantime wanted to know what kind of problems others tackle using this software.
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This page was started following discussions initiated by Mogadalai Gururajan.
Here are some links to open source codes/software available on the net; all this information is collected from different posts at iMechanica. It is quite possible that we missed some, and some that are listed are not open source. If so, please feel free to edit the post or leave a comment with relevant links so that we can edit the post.
Modelling and simulation is sometimes said to be the third way of doing science, the first two being theory and experiment; see this essay in Science for example:
FEMs are widely used in education, research, and industries. What is the prospect of having a vibrant community to evolve an open-source finite element code? What are the potential benefits for such a community and code? Has anybody tried?
Presumably whoever active in this effort may find support from government funding agencies and industries.
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