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Korosh

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About Korosh

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    Iran
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  1. 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
  2. Hi I share .rad file thank. FR_Door2_Gravity_30_0000.rad FR_Door2_Gravity_30_0001.rad
  3. FR_Door2_Gravity_30.hm FR_Door2_Gravity_30.hm
  4. 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
  5. Model with Impactor(Rigid wall) FR_Door2_Gravity.hm
  6. 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.
  7. You explained so easily. thank you very much
  8. sorry, I forgot to send the files FR_Door2_E-5_0001.out FR_Door2_0001.out
  9. 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
  10. I did that and remove my problem. thank you
  11. hi my Dear I simulate impact (Intrusion test) with front Door and Pole impactor. after define interface,velocity,spotweld and .... then in Hyperview ,show the result. my problem is, Before impact between door and impactor, i see some Stress on door at result. please guide me, why I see stress in Door Mesh before impact? Bestregard FR_Door_LH_98_11_19.hm
  12. Hi My Dear I create 2D Mesh with Hypermesh and with radioss solver.(the Outer Door of car) then Export by Radioss type. But when i Import that to hypercrash, a lot of Element's missing. Please tell , why happen for my Model? Thank out_0000.rad out_0001.rad
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