Frontal solver
Is there an open source frontal solver in Fortran?
Is there an open source frontal solver in Fortran?
Hi,
I am actually working of field data transfer techniques when remeshing is needed during analysis of metal forming process.
some
researchers use a so called Linear interpolation technique using the
volume coordinates as shape functions to transfer a field from a mesh
to an other.
Is there any one who used this technique in such a problem?
If there is any, could he tell me which are the advantages of the technique and its disadvantage?
Is there any tests to validate the method?
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I once came across a novel which contains the following (verbatim) :
Laplace had once prepared a paper for the Academie, claiming that it would be possible to predict the outcome of a game of dice if one had precise knowledge of every factor, such as the weight of the die, the exact way in which the hand moved, the strength of that hand, and the force of each throw.
The Koiter-Sanders-Budiansky bending strain measure and a nonlinear generalization
We know from strength of materials that non-uniform stretching of fibers along the cross section of a beam produces bending moments. But does this situation necessarily correspond to a 'bending' deformation? For that matter, what do we exactly mean kinematically when we talk about a bending deformation?
I have been writing a MATLAB code to reproduce the results of Verlets paper - Computer "experiments" on classical fluids, 1967.
Here is how I go about it:
- I initialize all the velocities (uniform distribution about [-1, 1])
- Initialize all positions (NOT random allocations).
- I use Verlet's algorithm to update the positions.
I had prepared this document for a class project, the level is introductory and the selection of models is motivated by solder deformation, but I hope it is of some help. I have examined four models, proposed by Hart, Anand, Krempl and Busso. The document has 16 pages.
Thanks,
Dhruv
PS: This is a wonderful website!!!
When you first start learning finite deformation plasticity, you will run into a plastic flow rate that can be derived from a flow potential such that
| (1) |
whereis the Cauchy stress. For an isotropic material with scalar internal variables, the plastic
flow potential can be assumed to have the form