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Cnaaaaa

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About Cnaaaaa

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  1. It was very useful. My problem was also solved.
  2. Dear Edouard, Thank you for your complete answer. It was exactly what I wanted. Best,
  3. Dear All, Hi, I simulated a laying up process and was thinking to ask you what kind of output I should use to evaluate the angle change in warp and weft direction, fiber reorientation, during laying up ( as shown in Ktex webinar for radome). Any help would be appreciated. Thank you in advance, Cna
  4. Dear Edouard, just for update: you were right and the problem was because my account. Thank you you again for your kind assistance, best regards, Cna
  5. Dear Mr Edouard, I appreciate your time. I double checked Altair partner alliance software packages page and could not find Ktex available. Actually I am able to download other package of software like Hyperworks with my account. So, it is less likely to be the problem. Many thanks for your assistance, Cna
  6. Hi dears, I have HYPERWORK package installed in my PC ( with research license). How can I access Ktex zip file containing *.tcl or *.tbc? the license includes access to Ktex as well. Thank you in advance, Cna
  7. Thanks so much Ivan. I really appreciate your help. It was very useful.
  8. Thanks so much for the useful information. My purpose is composite thermoforming too and this material model appropriately modelled wrinkling as shown in the attached file. Could you please let me know how I should specify user-defined outputs? should I write python code for it (like in ABAQUS) or it is available in default? I checked the user manual for /TH/SHEL and it seems that USER1,2..,6 are available just for material model 29, 30, 31, and 52! I appreciate any kind of help, Cna
  9. Hi dears, I simulated the bending of a tube using MAT LAW 58. I am willing to capture fiber orientation after bending in Hyperwork. In other words, I want to know the change of shear angle after bending. could you please help me how I can do that? Any help would be appreciated, Thanks so much, Cna
  10. Dear Gajendra, I really appreciate your interest but i am afraid to say the work is confidential and I am not able to share the data. It is also on composite material and I found that optisruct does not support transient thermal analysis on composites! However, I hope to share the final result to check the accuracy of the simulation. Best, Cna
  11. Dear Gajendra, Many thanks for your nice reply. It was really helpful and exactly what I wanted Best, Cna
  12. Hello friends, I have done a transient thermal analysis in optistruct for a homogenous material. As optistruct does not support transient thermal analysis for composite material, I am willing to apply this thermal analysis for MAT LAW 25 in Radioss. Unfortunately, the convert option is not active from optistruct to radioss. Would you please let me know what I need to do for thermal analysis of composite material such as MAT 25 or MAT 19 in radioss? are there any equivalent card image or interface type like those in optistruct? Thank you in advance, Cna
  13. Dear Gagendra, Thanks so much for the time and clarification. So, here SPCD is excited field or amplitude A for the dynamic thermal load which is defined in TLOAD1. Would you please let me know how I can apply this dynamic load to the ambient node? It seems that it applies directly to the structure which is not desired for my simulation. I tried to define a variant ambient temperature by Analysis>Temp>load (load collector = TLOAD). But it did not work. Could you please help me how I should apply the BC such that the thermal load be applied to the ambient node? ( so after that I can define SPC of 20 on the tube's nodes and CHBDYE4 elements for convection). It would be great if you let me know if I am on the right track. many thanks for your attention, Cna
  14. I appreciate your kind help. However, I am a little confused! According to the attached file, SPCD plays the role of "A" which is a coefficient and not temp.value! on the other hand, according to the explanation below the formula, it is time dependent temperature BC. My purpose is the simulation of high temp tensile test. could you please let me know how I should consider the thermal BC? Sorry, but I did not understand what you mean when you say "U have to provide value only in spcd not in spc. Spc will automatically consider same temp which is given in spcd". Thank you very much for your time and help, Cna
  15. Dear Rahul, the problem solved and I finally got a simulation run. But I have 3 further questions and would really appreciate if it is possible for you to help me to proceed. 1) For the thermal load, I gave 1 to spcd as I found it works like a coefficient for the temperature load. ( when I gave 10 to spcd, the temperature load would be 10 times higher.) Am I wrong? Also, I gave spcd (1) and spc_temp (20 centigrade) to ALL of the nodes of the tube. Is that correct? The results are not reasonable! since the stress-strain plot will drop by increasing the temperature! 2) In the real condition, the initial temperature for the tube is 20 centigrade and the ambient temperature increases from 20 to 200 and then decreases. I did not define CHBDYE surface elements and I am not sure if convection condition should be defined for this problem or not! 3) In my experimental work, the temperature would increase from 0 to 200 centigrade, then the temperature would be kept constant (200) and the mechanical load will apply. After that, the mechanical load will be kept and the temperature will decrease to the room temp. How can I do these kinds of multiple step analysis? ( I have read the tutorial file for optistruct thermal analysis but didn't find anything regarding this issue) Thank you for your time to read my questions. It would be great for me if I had your suggestion. Cna nonlinear transient_success.h3d hwsolver.mesg nonlinear transient_success.fem nonlinear_transient_success.h3d nonlinear transient_success.hm nonlinear transient_success.out nonlinear transient_success.stat
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