Re: [deal.II] Re: How to use Trilinos instead of Petsc in step-40

Hamed, which solvers do you think I can examin and see if they can be used instead > of SolverCG? > Running with the deal.II CG solver gives me An error occurred in line <424> of file in function void PhaseField::Material_Compressi

Re: [deal.II] Re: How to use Trilinos instead of Petsc in step-40

which solvers do you think I can examin and see if they can be used instead of SolverCG? That's the wrong question. If you know that the matrix you have *should be* symmetric and positive definite, but the CG solver does not converge, then you need to debug why the matrix *is not* s.p.

Re: [deal.II] Re: Easy way to calculate second-deviatoric tensor

On 10/17/2016 03:36 AM, Daniel Arndt wrote: From this symmetric gradient tensor, do we have one easy way to calculate the following "the second invariant of rate-of-strain tensor"? There is SymmetricTensor::second_invariant [1] which is defined as I2 = 1/2[ (trace sigma)^2 - trace (sigm

[deal.II] Re: Easy way to calculate second-deviatoric tensor

Thank you all guys who replied here!! -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To uns

[deal.II] Defining tensor in different dim and spacedim

Dear All, I am solving an elastic problem coupled with heat equation transfer (thermal-elasticity). I should solve the problem in a curved domain (circle in 2d and sphere in 3d) . I am developing step 44 in this case. I have to define some symmetric tensors. I have attached some parts of my code

[deal.II] constitutive model for soil

Dear list I saw dealii has been applied for geodynamics problems. However, is there any effort in dealii community trying to tackle problems in geotechnical engineering? For example, constitutive modelling for more realistic soil simulation like Mohr-Coulomb or Cam Clay. I would like to see exa

[deal.II] Re: Defining tensor in different dim and spacedim

Dear Benhour, I'd like to help you but I really don't understand your question. Since its templated on the [space] dimension, the PointHistory class that you've displayed here is potentially suitable for either codimension 0 problems (dependent on your implementation of a constitutive law, of c

[deal.II] Re: Defining tensor in different dim and spacedim

Dear All, I want to solve a thermoelastic problem in cylindrical coordinate system. My domain is a circle in 2D or Sphere in 3D. I am following step 44 with considering the fact that I am solving for small strain. Because I have curved domain and I should Impose a boundary condition that change

[deal.II] Re: constitutive model for soil

Hi Giang, There is definitely an informal community of people using deal.II for various problems in computational geomechanics, including geotechnical problems like consolidation analysis and slope stability. Over the years, some colleagues and I have accumulated quite a bit of infrastructu

Re: [deal.II] Re: constitutive model for soil

On 10/18/2016 05:10 PM, Joshua White wrote: There is definitely an informal community of people using deal.II for various problems in computational geomechanics, including geotechnical problems like consolidation analysis and slope stability. Over the years, some colleagues and I have accumulat

Re: [deal.II] Re: constitutive model for soil

I'm glad to hear others are interested. I vote to migrate this particular discussion to #3091, because it raises lots of "what-code-goes-where" questions that others have been struggling with. A code-gallery type project would be a reasonable first step though. -- The deal.II project is loca

[deal.II] Re: Defining tensor in different dim and spacedim

Dear Benhour, Thank you for providing a little more context, but you still have not articulated what the actual problem is. What exactly do you mean by "I have some problem with defining elasticity matrices"? Please see this post , in