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Hi there,
I am trying to model the DMA test for single pulp fiber. In this research I can I assume whatever procedure or materials parameters I need, from an old PhD thesis I took some materials parameters for the cellulose, hemicellulose and lignin and by using the composite theories I calculated the stiffness matrices for each constituent I have and from there I calculated the stiffness matrix of the fiber, and of course calculated the longitudinal young’s modulus of the fiber at the room temperature.
Hi,
I'm a fresher in abaqus. Now I'm trying to simulate the damage of brittle kind of materials, like concrete with abaqus on mesoscale. But there are some problems now...
One of the most significant factors in molecular dynamic simulatin is to choose the proper potential. Recently, I did some searching jobs on Vanadium (V) potential and finally decided which potential I am going to use. Here is a simple summary:
A brief introduction of EAM, F-S and MEAM potentials for BCC transition metals
How can we perform first structural and then thermal analysis in ANSYS (version 12) ? All the examples show the sequence the other way. I can't go for Direct coupled method as the materials are elastic-plastic (plasticity is not supported by direct coupling elements).
We are interested in making contact with self-motivated candidates with significant experience in multiscale simulation, if possible with a Physics or Mathematics background for projects involving the simulation of multiscale fracture. Researchers with experience in ab initio models are particularly encouraged to make contact.
Please contact stephane dot bordas at gmail dot COM for more detail.
Thank you
Stephane
Hi,
I'm a fresher in abaqus. Now I'm trying to simulate the damage of brittle kind of materials, like concrete with abaqus on mesoscale. But there are some problems now...
The random meso-structure has already been generated by matlab, but I don't know how to import the information of the geometry which are some coordinates? I find the file formats which could be read by abaqus, like Autocad .dxf,.step...but I'm not sure how to do it exactly since geometry information are in terms of coodinates in matlab.
Summary:
I am thinking of informally conducting a specific case-study concerning the FEA solvers. The reference problem is a very simple but typical problem from stress analysis, leading of course to the linear systems: Ax = b and Ax = Lx.
I seek advice as to what software libraries currently available in the public domain would be best to use---the ones that would be fastest in terms of execution time for the reference problem.
