Search found 41 matches

by maike151
19 Jul 2019, 14:42
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

I get an output now, but unfortunately not the right values: mustatic: 0.29999999999999999 mudynamic: 0.20000000000000001 NodeLoad: 0.0000000000000000 DetermineContactSet: Creating fields out of normal and stick contact sets Fstatic: 4.5454039417394682E-322 Fdynamic: 6.9529800193766885E-310 the fric...
by maike151
19 Jul 2019, 10:50
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

So little update: I deleted the line "Stick Contact Global = Logical True" and now the function is called from the beginning on. But my output is still not there. I even added the line CALL Info('TangentContactSet', 'Hallo_outofif') outside of the IF-loop to see if the If-condition is maybe not met,...
by maike151
19 Jul 2019, 10:42
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

That's what I thought. So right now I am trying to output Fdynamic and Fstatic directly to the terminal. It is not working yet though. Are you well versed in Fortran90? The code can be found in SolverUtils.F90, Subroutine TangentContactSet. I added lines to IF( FrictionContact .AND. & ListGetLogical...
by maike151
18 Jul 2019, 12:23
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

I changed "Normal-Tangential Velocity = Logical True" to "Normal-Tangential Displacement = Logical True" in both the Master and the Slave BC and deleted "Normal-Tangential Velocity Rotate = Logical False" and now the cube does not fall through the floor anymore and contact is recognized! But unfortu...
by maike151
18 Jul 2019, 11:06
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Thanks again for your effort and sorry for the late answer, I had to call in sick. So I tried the same thing and got the same output. I am really confused by this, because once contact is recognized, usually the non-penetration-condition of contact (contact gap >= 0) should hold, shouldn't it? Howev...
by maike151
12 Jul 2019, 12:25
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Thanks!
by maike151
12 Jul 2019, 11:34
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Thank you so much for your effort!

I changed everything according to your explanations, but now somehow no more contact is recognized and the contact surface does not hold the cube up, the cube penetrates the floor and just falls through it. I attached two pictures.
by maike151
11 Jul 2019, 16:11
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Thank you! That makes sense. But wouldn't it be Stress Bodyforce 2 = $ -9.81 * 7870.0 * "Volume" (Normal Force = 9,81 * mass instead of density) I don't know the measurements of the beam, but in my case (the cube is 1cm³) I would put Stress Bodyforce 3 = $ -9.81 * 7810.0*10e-6. Do you agree? I tried...
by maike151
11 Jul 2019, 12:28
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Do you mean the normal force of the cube? I didn't define it, because I assumed ELMER would calculate it automatically. In which section would you define it?
by maike151
11 Jul 2019, 11:28
Forum: ElmerSolver
Topic: Contact Mechanics - Friction Test
Replies: 63
Views: 9263

Re: Contact Mechanics - Friction Test

Hello Kevin,

thanks for your reply! I've seen this test case before. Unfortunately It didn't really help me since they do not use "Apply Contact BCs" and "Friction Contact".

Sincerely,
Maike