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Mrt

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Everything posted by Mrt

  1. Mrt

    contact

    i think about it. i use isolid 12 now. Is 24 better?
  2. Mrt

    contact

    so for this part i use type_2 (tie_contact) it's interesting because in first model there density was larger it was all right=)
  3. Mrt

    contact

    it was good.
  4. Mrt

    contact

    Yeah, guys, one more question! How does density correlate with negative volume? i changed density (it was wrong by 1000 times!) and it is cause of analysis crashing=( i know about CFL) Applique_VTM_2Aug2018_0000.out Applique_VTM_2Aug2018_0001.out Applique_VTM_2Aug2018_0002.out
  5. Mrt

    contact

    Thanks all. i will try. i have never had a problem with contact issue in explct solver in my work=)
  6. Mrt

    contact

    is it right? i don't understand-if i have edge and surface with real gap X. why should i specify gap min and max? is gap max X and gap min t/2? is it called VARIABLE GAP?
  7. Mrt

    contact

    my file is part of large model=) but large model would have crashed if i had used my settings.
  8. Mrt

    contact

    @Prakash Pagadala, @Ivan. Solution has crashed with my settings. I'm reading reference_guide about interaction. i don't understand-if i have edge and surface with real gap X. why should i specify gap min and max? is gap max X and gap min t/2? is it called VARIABLE GAP? so in my task edge to surface contact, but edge to surface is the same node to surface that is why i try to use type 7.
  9. Mrt

    contact

    Hi, @Ivan! i took this way: 1. have remeshed properly my part 2. have used type 7, Igap=1000 3 Gap min=1.5 (it's value of housing half thickness) i don't see forces in first output frames. What do you think about my settings?
  10. Mrt

    contact

    Hello all! What is the best way for contact interaction with small penetration? But reaally, i don't see penetration penetration checker doesn't see this too. but in post processor i have the spurious forces. i have a manual-crash book. i have tried to use approaches from this book, but i have had fail. if i do type 7 all settings default i will no contact interaction untill i have large displacement. i need advice and approach!=) thanks for help. 1.avi 1_0000.rad 1_0001.rad
  11. there i mistaked in units. but it didn't solve a problem with heating=(
  12. did you have any idea @Rahul R? small.fem
  13. i had done revolute joints in LS DYNA, but i hadn't problem.
  14. i will do simple example is like my issue and will send here.
  15. but it doesn't work. plate blue heated (in blue plate is root of heat), but the brown plate was cooling=( i did heat transfer analysis.
  16. Hello all! can i solve issue is like this? i have 2 plates ( but plates are not a siple form) which are separated by air. how can i solve it task? is it possible in optistruct using heat transfer analysis. i have created 2 interface convection. 1-plate blue and point 2-point and plate brown. but it doesn't work. plate blue heated (in blue plate is root of heat), but the brown plate was cooling=( Do you have any idea? thanks.
  17. i haven't still solved it issue=(
  18. Hi @Aurora! if i were you i would do a small test-task with only connector in ls prepost. you can see how it works and redo it in HM. another way, if you use rigid bodys in ls dyna, you can not connect it by rbe2 instead you should use extra nodes set.=)
  19. it's not my issue=) @xyz is topic starter.
  20. yes, i have written in up post that connectors doesn't work.
  21. @jmey it's interesting. i did that i said about in up post, but have taken explct solver. it works!
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