Search found 8 matches

by hauptmech
13 Nov 2016, 05:09
Forum: ElmerSolver
Topic: Linear Elastic Principals and their angles.
Replies: 1
Views: 1213

Re: Linear Elastic Principals and their angles.

As an addendum, I found that I could split the principal stress/strain vectors with an Exported Variable directive in the Solver section: Exported Variable 1 = Principal Stress[Principal_Stress_1:1 Principal_Stress_2:1 Principal_Stress_3:1] Exported Variable 2 = Principal Strain[Principal_Strain_1:1...
by hauptmech
12 Nov 2016, 06:49
Forum: ElmerSolver
Topic: Element vs Node forces
Replies: 1
Views: 1178

Element vs Node forces

Boundary condition user functions are called multiple times for each node when the target is a boundary. Are the user function results from every call applied to the nodes with some sort of normalization? Or is a single preferred call applied (perhaps the first call for any given node, or the last c...
by hauptmech
11 Nov 2016, 07:30
Forum: ElmerSolver
Topic: Linear Elastic Principals and their angles.
Replies: 1
Views: 1213

Linear Elastic Principals and their angles.

Hi, I'm using the principal strains and principal angles output and I'm curious if there is anyone out there that is using them directly as they are? I have to manipulate them a bit (split the principal values 'vector' into scalars and convert the angles into a rotation matrix/direction vectors) to ...
by hauptmech
11 Nov 2016, 01:53
Forum: ElmerSolver
Topic: Problem understanding boundary conditions
Replies: 6
Views: 3038

Re: Problem understanding boundary conditions

I am running serial. The relevant output is: (I just now added some dummy boundary conditions so that all boundary weights are shown.) BC weight: 1 2.0906241574201690E-003 BC weight: 2 2.0861969993537025E-003 BC weight: 3 1.4964948152328917E-002 BC weight: 4 3.6268986341234169E-003 BC weight: 5 3.22...
by hauptmech
10 Nov 2016, 01:43
Forum: ElmerSolver
Topic: Problem understanding boundary conditions
Replies: 6
Views: 3038

Re: Problem understanding boundary conditions

Hi, This sounds like just the thing I needed, however, it does not seem to work. I have added the keyword to my local SOLVER.KEYWORDS as it fails without it. bc:logical: 'Force 2 Normalize by Area' When I add the keyword to my sif file the result is different (more than an order of magnitude) than w...
by hauptmech
10 Nov 2016, 01:07
Forum: External tools
Topic: Arch Linux Binary Installer for Salome
Replies: 3
Views: 4846

Re: Arch Linux Binary Installer for Salome

Thanks for posting this CrocoDuck!
by hauptmech
09 Nov 2016, 04:30
Forum: ElmerSolver
Topic: Problem understanding boundary conditions
Replies: 6
Views: 3038

Re: Problem understanding boundary conditions

Hi peter, Thanks, the results are a lot closer in agreement and both close enough to the expected solution with that change. (For others hitting this issue, the docs are Appendix E and later of the ElmerSolverManual). The note about small number of meshes is helpful too. I'm new to FEM and am still ...
by hauptmech
08 Nov 2016, 01:54
Forum: ElmerSolver
Topic: Problem understanding boundary conditions
Replies: 6
Views: 3038

Problem understanding boundary conditions

Hi, I'm trying to get valid results from the linear elastic solver and failing. I think I'm misunderstanding the boundary conditions. I have a 100mmx20mmx4mm aluminum beam, fixed at one end, with a load of 100N applied in the thin direction on the other end. I expect about 4.3mm of deflection. I'm u...