Re: [deal.II] Looking for clarification on a few places on Step-44

2022-10-17 Thread Matthew Rich
Hi Ester I plan to dive into your code example next. There is another jump in complexity when you fold in the biphasic aspects of the tissue. As someone coming from the comparatively simpler materials, I am used to thinking of everything in terms of displacements. I know when you start dealing

Re: [deal.II] Looking for clarification on a few places on Step-44

2022-10-06 Thread Ester Comellas
Hi Matt, Maybe the nonlinear poro-viscoelastic code Jean-Paul and I contributed to the Code Gallery may help you decide whether adding another phase would be feasible for your application. Our formulation models a biphasic material that consists in a nonlinear (finite-strain) viscoelastic

Re: [deal.II] Looking for clarification on a few places on Step-44

2022-10-05 Thread Wolfgang Bangerth
On 10/5/22 07:30, Matthew Rich wrote: I am trying to understand the process so I could potentially extend this formulation for biphasic materials. The way it handles incompressibility is perfect for high water content tissues. My concern revolves around adding another phase and explicitly

Re: [deal.II] Looking for clarification on a few places on Step-44

2022-10-05 Thread Matthew Rich
This was very helpful! I am trying to understand the process so I could potentially extend this formulation for biphasic materials. The way it handles incompressibility is perfect for high water content tissues. My concern revolves around adding another phase and explicitly solving for the fluid

Re: [deal.II] Looking for clarification on a few places on Step-44

2022-10-04 Thread Jean-Paul Pelteret
Hi Matthew, I'm glad that you find step-44 to be a useful tutorial! Let me try to answer your questions directly. /My first question deals with the statement "The Euler-Lagrange equations corresponding to the residual"/ / / /Directly above this sentence is the residual, whose

[deal.II] Looking for clarification on a few places on Step-44

2022-09-30 Thread Matthew Rich
Hi, Step-44 has a lot going on and really sets you up to tackle a variety of real world problems. There is a significant jump in complexity between this tutorial and steps 8,17 & 18. I have been reading the references and I am about there but need few clarifications for why things are the