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Raphael_Mtl

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Everything posted by Raphael_Mtl

  1. Hi George, Thank you very much, the model is running as I wanted ! Nevertheless, I've another question. How is it possible to orientate each surface of the model independently ? Thanks for your support Raphael
  2. Hi George, I tried with Type 7 and Type 24, and it still doesn't work. When I start the calculation, I always have a warning regarding initial penetration. Also, please find attached the concerned model. Thank you for your help Crash_box_Equiv_V1_(3).hm
  3. I'll try right now this kind of interface. Do I have to try with the same parameters than Type 7 ?
  4. Hi George, Yes I'm using a type 7 interface with recommended parameters : Istf=4 IGap=2 INACTI=6 Fric=0.1 Gapmin=0.1 So, do you mean that I've to increase GapMin parameter? How can I determine the good value ? I'm especially trying to stimulate this object impacting a rigid walk. I built this model using only 1 component, and I want to model the contact of this component itself. Am I in the good way ? Thanks Raphael
  5. Hi all, I'm performing a dynamic simulation using RADIOSS solver. I'm creating this kind of model : I used a COMPSH material law and an SH_ORTH property in order to model an "equivalent material", with a 4 mm thickness. When I run the analysis, I've issues regarding penetrations in my model. Nevertheless, when I want to fix them using the Penetration Check tool, elems are totaly deformed. Could you please help me with this model ? Best regards, Raphael
  6. Hi all, I want to control directions of my composites on differents faces. Then, I created as much vectors collectors as I have differents orientations on my component. But when I "project" one vector on the elems face, then I do the same thing for another face, my elems will all have the direction given by the last vector projected. I don't know how to fix this issue in order to have different orientation according to the face. Thanks for your help
  7. Hi Georges, No I only have a P17_STACK property in my model. I've got 8 plies, 1 associated laminate then a stack property. I tried running with those values assigned to the reference vector, but I still not working. Do you have any other idea ?
  8. Hi all, I'm facing a problem I can't fix. When I want to perform my dynamic analysis, I get 8769 errors like below : ERROR ID: 197 REFERENCE DIRECTION IS ALMOST NORMAL TO SHELL ID=54115 Could you please help me to fix it ? For confidential issues, I can't illustrate my model... Best regards, Raphael
  9. Hi George, I checked quality of elements and there are okay. Also, I just have only one component, so I don't have any penetration. I heard about AMS method, I'm running it but I don't know what's different compared to an non AMS model ? It there an other way to run the model without using AMS ? Please find attached the .hm file. Best regards, Raphael Test_Poutre_Impact_9_85_V2.hm
  10. Hi Georges, I've reached to deal with mass error so far. Now, I've a new error when I want to compute this high speed test. **ERROR : TIME STEP LESS OR EQUAL ZERO I don't have any contact interface. How can I deal with it ? Thanks for your help Raphael
  11. Hi Georges, Whaat do you mean by selecting all the nodes of the beam ? The impact is located on the midlle of the beam.
  12. Hi Georges, Thanks for your help. How can I fix the problem ? I really have to compute the model with this mass and velocity.
  13. Hi Georges, I reduce the Tmin as you mentioned, but I still have a DM/M=1.71 since the first step. Then, I've got error code 207, RUN KILLED TOTAL MASS ERROR LIMIT REACHED DM/M = 1.58e+259 Please find attached the .hm file concerned. Raphael Test_Poutre_Impact_9_85_V1.hm
  14. Hi @George P Johnson, I placed some BCs on the beam in order to get the flexion and it works. Nevertheless, I can't raise the velocity of the RWALL without having errors with mass. I already compute the flexion with a 10 mm/s velocity, but now I want to change the velocity to 9150 mm/s. How can I do this without errors ? Thanks for your help, Raphael
  15. Hi, Thanks for your support guys, it works perfectly ! Raphael
  16. Hi Georges, In my case, the beam is not falling ; it's like BCs had been applied to the beam. Please find attached the model and results files. Thanks for your help. Raphael Test_Poutre_Impact_Alu_V3_BC.h3d Test_Poutre_Impact_Alu_V3_BC.hm
  17. Hi Tinh, I'm not sure to catch what you said. If I want to run this explicit impact analysis (see picure below), I've to block Z-translation of my beam, do you agree ? If I don't block any node, when the impactor will impact the beam, the beam will fall, right ?
  18. Hi Georges, It's a mix of both. I've no BCs applied to the model, but I've a RWALL applied on it. No gravity. A velocity is applied to the RWALL in order to impact the beam. The beam is not clamped, no BCs. I don't understand how RADIOSS is able to compute. Thanks, Raphael
  19. Hi, I'm working on an impact test model using isotropric material. I don't understand how RADIOSS is able to converge to a result whereas no BC is defined to the model ? Could you help me dealing this ? Thanks, Best regards, Raphael
  20. Hi Georges, Thank you for your anwer. Unfortunately, I checked this and same error appears. Do you have any other idea ? Best regards, Raphael
  21. Hi, When computing with RADIOSS, I get this error message (ID 23) : "INCONSISTENCY BETWEEN GLOBAL INTEGRATION AND MATERIAL LAW TYPE=25". Could you please help me ? Best regards, Raphael
  22. Hi Georges, I'm using HyperWorks 2017.2, and I don't see the "realize" function as you said yesterday. By the way, I always have to choose between both materials. It's a monolithic composite, so there are 2 plies of A and 16 plies of B. The plies of B are between the A layers. The specifications are on the Table below. Thank you for your help Best regards, Raphael
  23. Hi George P Johnson, As you said yesterday, I tried without the "realize" option, and sadly it doesn't work. I've some errors to run the model. What do you want to say by this sentence ? If I want to keep using this function, is it okay for the model ? If yes, how can I choose between both materials created ? Thank you, Best regards, Raphael
  24. Hi Georges, I'll try this then I'll come back to you. Thanks
  25. Thanks Georges, I'll try this. I've an other issue. My plate is in composite, using 2 differents composite. There isn't core, it's just a laminate using 2 differents composites. I created both materials, the differents plies, then I realized the laminate. A new component appears. The question is, which material should be assigned to this new component ? I run 2 identical models changing the assigned material, and I calculated a 12% error... Thank you Raphael
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