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JJJ

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Everything posted by JJJ

  1. Hello Ken, Thank you very much for your response. It would be a good implementation in future, because in a lot of applications it is necessary to know with the objective to determine aditional parameters of the analysis such as ductility.
  2. Hello friends, I am performing a material non-linear analysis, and I want to represent the force-displacement curva (typical in bolted connections). Is it possible to obtain from Simsolid internal points from different calculation steps? Thank you very much. Regards, JJJ
  3. Hello Livil Lyle, Good morning, sorry for the delay to answer but I have been very busy this time. Could you please tell me how I can view the odb results in Hyperview? Thank you.
  4. Ok, thank you very much. Waht creep laws are supported in Hypermesh? Because information about this topic is not very extense on the software. Something else: is it possible to implement (program) this effect? Where can I find more information about this? Regards.
  5. Dear Hyperman, Thank you very much for your response. Do you know about any tutorial for the implementation of the Bailey-Norton law? Thank you, regards.
  6. Good morning friends, I have to develop the analysis of a structure submited to constant loads and temperature, and I want to estimate its life. I want to know how to perform this type of analysis by Radioss (I think this is the best software in Altair to do that), and I w.ant to consider the Bailey-Norton law. Also I want to know the possibility to expose some of the parts to higher temperatures during the time. Thank you very much for your attention.
  7. Dear collages, I am running a model with PBEAM elements, and I have the previous error. What can I do? Thank you in advance. *** ERROR # 2372 *** No PWELD properties exist in the bulk data. *** ERROR 14: Missing property # 9 referenced by CWELD # 38276. *** ERROR 14: Missing property # 9 referenced by CWELD # 38277.
  8. Dear collages, I am goin to adquire a new personal workstation. My Altair license is the most basic (1-4 cores). I want to know if somebody could help me to take the decision to buy the computer with the best quality/prize relationship. As I have the possibility to use it until 4 cores, nowadays a lot of processors have more cores (usually 6), so I think that I haven't to anlyze this. But what I want to know also is about the posibility to use the GPU as processor. In which situations is possible to use it on processing? Is it possible to use simultaneously the CPU and the GPU? How I could compare the capabilities from CPU and GPU? In some information in internet say that the GPU could "help" to CPU to do the calculations. Which is better, a GTX or a QUADRO GPU? Thank you very much for your attention. Regards, JJJ
  9. Dear friends, Here I found the solution to my problem: https://abaqus-docs.mit.edu/2017/English/SIMACAECAERefMap/simacae-c-dbsflatteninput.htm In Hyperview, is it possible to visualize results from a *odb obtained in Abaqus? Regards.
  10. Dear afura, Thank you very much for your quick response. Sorry but this is the first time that I export from Abaqus to HyperMesh but, how I can export the abaqus model in flattened format? Thank you very much.
  11. Dear friends, I have a model calculated in Abaqus, and I want to analyze differences between this software and Optistruct. When I import the *.inp file into Hypermesh, the model is not imported properly. Why is happening this? I attach two pictures. Thank you very much for your attention. Regards, JJJ
  12. Dear Hyperman, Thank you very much for your rapid response. Once that I have associated nodes from beams elements to shell elements, how I can define the 2D meshing for that these elements will be coincident? When I mesh the 2D surface (as you can see in the figure attached) 2D nodes are not coincident with 1D nodes. And one more question: with this operation, then beam and shell elements will be "welded", or is it necessary to define in Hypermesh? Thank you very much.
  13. Dear friends, Good morning, I have a situation and I don't know how to solve. I think you can have a solution. I have a structure composed of beams and surfaces (beams are in the same planes than surfaces). I want to consider the connection between the two components: at this time I have meshed yet beam elements (so I have their nodes in the model), but now I want to do the next: that surfaces will be meshed and their nodes will be coincident with beams' Also I want to know if this is the only thing that I have to do to consider the connection between beams and shells or if I have to define something else. Thank you very much for your attention. Best regards, JJJ
  14. Dear Pranav, Thank you very much for your repply. But the problem is that I have a lot of 1d elements that I have to connect with 2D elements. I want to know if exists in Hyperworks anyway to define to the program that he finds contacts (point-surface) and assign a bonded contact. Regards, JJJ
  15. JJJ

    Error 153

    Dear Rahul, Thank you very much for your reply, it has been useful to me. I have two more questions: when I run considering that control card, I've got this result: Iteration Subcase Variable Grid/Elem ID Value --------------------------------------------------------- 0 1 MaxDisp 40574_X 6.5587e+12 What I can understand is that the Element ID 40574 is not constrained. How is it possible to find it? I try to mask it but I can't. Once that I have defined that Control Card, how I can disable it? Regards, JJJ
  16. JJJ

    Error 153

    Dear friends, Good morning, I am solving a modelo and when I run it I have this message: " *** ERROR # 153 *** Exactly zero pivoting encountered during Numerical Factorization; the model may have rigid body mode. Solver error no. = -514 spc set id = 1 index = 1 Possible reasons are: 1) insufficiently constrained model, 2) having rigid body mechanisms within the model, 3) extremely ill-conditioned rigid element sets, 4) extremely thin shells (as used for skinning) that have MID2/MID3, 5) gap elements with extremely high stiffness (KA, especially KT or MU). 6) extremely high Poisson's ratio in hyperelasticity material definition. Check the model and rerun the problem. (MECHCHECK may be used to find the rigid body modes. To do so, change the input to be an eigenvalue analysis and add MECHCHECK.) (WARNING: results obtained with MECHCHECK cannot be used because the model is changed internally.) This error was detected in subroutine bcsmtxfct. I can't find the way to define the MECHCHECK option (anybody could please share a detailed tutorial of it? Because I define an EIGENVALUE analysis but then I don¿t kno how to define the MECHCHECK option. Thank you very much for your attention. Best regards. "
  17. Dear friends, Good morning, I want to know if you could please help me, I can't find a way to solve my problem. I am analyzing the structural behavior of a vehicle, and I have modeled it with CBEAM elements (chassis) and SHEEL elements (the shape): I want to connect shell and beam elements by an automatized way. Is it possible? How I can incorporate into my model? Regards.
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