Search found 28 matches
- 07 Dec 2021, 21:56
- Forum: ElmerSolver
- Topic: Simulation of the force between two magnets
- Replies: 31
- Views: 16131
Re: Simulation of the force between two magnets
Peter, I ran your case that was posted on 30 Jan 2020. It works, just like you stated. However, for 3D my meshing workflow usually involves tets, not hex like in your mesh. When I ran the model using tets and gradient adaptive mesh refinement my "zeros" for magnetic force are on the order ...
- 03 Feb 2020, 19:39
- Forum: ElmerSolver
- Topic: Calculate 3D stress tensor for static equilibrium
- Replies: 6
- Views: 3675
Re: Calculate 3D stress tensor for static equilibrium
Ok, after doing more research on this, it looks like using just those equations would make the structure statically indeterminate. Material properties are needed. Thank you for your response, Mika, as it serves to confirm.
Joe
Joe
- 03 Feb 2020, 18:35
- Forum: ElmerSolver
- Topic: Calculate 3D stress tensor for static equilibrium
- Replies: 6
- Views: 3675
Re: Calculate 3D stress tensor for static equilibrium
Mika,
Do you have a recommendation on how I can solve this problem? Is it formulated correctly? My background is electrical, not mechanical.
Joe
Do you have a recommendation on how I can solve this problem? Is it formulated correctly? My background is electrical, not mechanical.
Joe
- 03 Feb 2020, 17:18
- Forum: ElmerSolver
- Topic: Calculate 3D stress tensor for static equilibrium
- Replies: 6
- Views: 3675
Re: Calculate 3D stress tensor for static equilibrium
Would the answer be to set the Young's Modulus to a very high value and put this in Solver: Time Derivative Active = Logical False ?
But doesn't Elmer calculate the stress from the strains? Am I saying or framing all this correctly?
But doesn't Elmer calculate the stress from the strains? Am I saying or framing all this correctly?
- 03 Feb 2020, 17:12
- Forum: ElmerSolver
- Topic: Calculate 3D stress tensor for static equilibrium
- Replies: 6
- Views: 3675
Re: Calculate 3D stress tensor for static equilibrium
Particularly I would like to solve these equations for the stress:
where bi is a body force. I would supply to Elmer BCs of force along particular boundaries (not all) and displacement would be zero everywhere.
Any help appreciated. Thank you.
Regards,
Joe
where bi is a body force. I would supply to Elmer BCs of force along particular boundaries (not all) and displacement would be zero everywhere.
Any help appreciated. Thank you.
Regards,
Joe
- 03 Feb 2020, 04:26
- Forum: ElmerSolver
- Topic: Calculate 3D stress tensor for static equilibrium
- Replies: 6
- Views: 3675
Calculate 3D stress tensor for static equilibrium
Hi,
Is it possible with current solvers to calculate the 3D stress tensor for a rigid body in static equilibrium? Basically, displacement should be zero everywhere and I would specify a force on a particular boundary. The solver would calculate stress field everywhere using that info.
Regards,
Joe
Is it possible with current solvers to calculate the 3D stress tensor for a rigid body in static equilibrium? Basically, displacement should be zero everywhere and I would specify a force on a particular boundary. The solver would calculate stress field everywhere using that info.
Regards,
Joe
- 10 Dec 2019, 07:40
- Forum: ElmerSolver
- Topic: How to autosave result data files and start from the last time step if solution crashed
- Replies: 9
- Views: 4352
Re: How to autosave result data files and start from the last time step if solution crashed
I run Elmer from the command line (I don't use ElmerGUI), however, maybe this will work for you. In the sif file, add the following in the Simulation Section: Output Intervals = 1 Output File = "result.dat" Binary Output = True ! Restart File = "result.dat" ! Restart Position = 0...
- 10 Dec 2019, 07:23
- Forum: ElmerSolver
- Topic: Parallel ReloadSolution Solver
- Replies: 0
- Views: 5653
Parallel ReloadSolution Solver
I really don't know right now how to use github or anything like that to do this: I noticed that the ReloadSolution Solver does not work in parallel. After fishing around a little, I was able to add like 2 lines and get it to work in parallel. I have attached the result. I did this a while ago, but ...
- 10 Dec 2019, 07:10
- Forum: ElmerSolver
- Topic: Trouble with Mesh Interpolation
- Replies: 9
- Views: 4908
Re: Trouble with Mesh Interpolation
Peter, I want to thank you for the suggestion you gave me, it really spring-boarded me into solving this issue and coming up with a really nice solution (at least for me) that has worked very nicely and I think i will use very often. I also wanted to provide that solution for others, because i have ...
- 06 Nov 2019, 21:40
- Forum: ElmerSolver
- Topic: Parallel DataToFieldSolver
- Replies: 1
- Views: 1537
Parallel DataToFieldSolver
Hello,
Before I spend a whole lot of time on this, maybe someone has an answer before I do:
Does "DataToFieldSolver" work in parallel? Meaning, Elmer is running in parallel, but the ASCII file is only one file (not partitioned).
Thanks.
Regards,
Joe
Before I spend a whole lot of time on this, maybe someone has an answer before I do:
Does "DataToFieldSolver" work in parallel? Meaning, Elmer is running in parallel, but the ASCII file is only one file (not partitioned).
Thanks.
Regards,
Joe