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Korosh

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  1. Hi my Dear Attached are two different models of front doors that have been tested for impact. In one of the doors there is a piece of reinforcement and the other lacks it. But the result of the stress analysis of both models is the same, while it should be different. Please advise what is wrong with my work?(I thinkو I am wrong in defining the Interface Type7) Bestregards FR_Door.rar
  2. Hi My freind's When I run the Hypercrash program, An error has been detected and I am unable to execute it. Apparently, a number of required files have been deleted. Please send me these files or guide me according to the attached image to solve my problem. bestregards
  3. Hi my dear after Import LS Dyna file in Radioss and i convert to Radioss(Bulck format), I have some Error like below picture Please guide me, how solve this problem. Best regards
  4. Hi The Video file is not exist
  5. Hi dear friends Are Car models like Neon,TAURUS,Toyota YARIS (on the training site) complete and capable of analysis? Do they need to define a specific parameter to perform the impact analysis? Best regards
  6. Hi I share .rad file thank. FR_Door2_Gravity_30_0000.rad FR_Door2_Gravity_30_0001.rad
  7. FR_Door2_Gravity_30.hm FR_Door2_Gravity_30.hm
  8. Hello Dear friends In the attached model, there is an error in the energy balance(99%) I know that this error is related to how I define Material, Contact or Time step. But I don't know which parameter in the file I need to change to fix the Energy error. Can anyone advise on the problem of energy balance? Bestregard's
  9. Model with Impactor(Rigid wall) FR_Door2_Gravity.hm
  10. Hi my friend With your good help I was able to solve Mass Err. But there is still a fault with the energy error(ERR= -99%).I changed some parameter in my model(Contact,Material , ...).However, as soon as a collision occurs, the amount of energy increases.If possible, please guide me to fix this issue. Is there an educational film about this? Best regards and I hope to meet my good friends in the future.
  11. You explained so easily. thank you very much
  12. sorry, I forgot to send the files FR_Door2_E-5_0001.out FR_Door2_0001.out
  13. my Dear, I have 2 question. 1) in my Model , mean Mesh size 7mm , Density : 9.85E-9 ton/l , E=210000 Mpa, i want to calculate Nodal time step by this equation: tn =L/(E/Density)^0.5 But i don't know , How to choose the right unit? 2) if after check Out file, and see increase %ERR= - 99% , is that simulation is good or bad? I attached two different Out file,Please checked and guide me. best regards
  14. I did that and remove my problem. thank you
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