Re: [deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-09 Thread Anup Basak
Hi all, The attached pdf might be useful. There is some notational difference from step44, but it is defined here. Thanks, Anup On Wed, Nov 9, 2016 at 12:41 PM, Andrew McBride wrote: > Dear Claire > > You might also be interested in the one-field version of step-44 in the > code gallery https:

Re: [deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-09 Thread Andrew McBride
Dear Claire You might also be interested in the one-field version of step-44 in the code gallery https://dealii.org/developer/doxygen/deal.II/code_gallery_Quasi_static_Finite_strain_Compressible_Elasticity.html A > On 9 Nov 2016, at 18:24, Claire wrote: > > Dear Wolfgang and Jean-Paul, >

Re: [deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-09 Thread Claire
Dear Wolfgang and Jean-Paul, I will try to do my best to produce the document and give a contribution (even small) to the library. I am not sure when exactly I will be able to have time to make it though... The problem that I personally try to solve is simpler and does not require a three field

Re: [deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-08 Thread Wolfgang Bangerth
On 11/08/2016 01:36 AM, Jean-Paul Pelteret wrote: You're welcome. If you go through the formulation and still don't have full clarity, then let me know. I do have this derivation documented somewhere... Claire -- If, on the other hand, you do figure it out, write it up into a one-page latex d

[deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-08 Thread Jean-Paul Pelteret
Dear Claire, You're welcome. If you go through the formulation and still don't have full clarity, then let me know. I do have this derivation documented somewhere... Regards, Jean-Paul On Tuesday, November 8, 2016 at 9:29:23 AM UTC+1, Claire wrote: > > Dear Jean-Paul, > > Thank you very much fo

[deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-08 Thread Claire
Dear Jean-Paul, Thank you very much for your answer. I still have to figure out some of the calculations you suggested me to do, but I got the concepts and the reason why the gradients are defined on the deformed configuration rather than on the initial one. Best, Claire Le lundi 7 novembre

[deal.II] Re: Question about Step 44 shape function gradient computations

2016-11-07 Thread Jean-Paul Pelteret
Dear Claire, You are right that this is a total Lagrangian formulation but that doesn't mean that one is restricted to defining the problem in terms of fully referential quantities. One can arrive at the same conclusion from a number of starting points, but ultimately its because we'd chosen