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Recent content by manaliac

  1. manaliac

    CRN approval with non ASME materials

    Hello everyone, Thank you All for your answers. We will probably end up with Dual use materials in order to still manufacture in the European Market as well. UG-10 (1)(a) allows indeed other non ASTM materials, but the set-off list of conditions is quite similar to procuring a dual use material.
  2. manaliac

    CRN approval with non ASME materials

    Hello everyone, I am working within a European Company which manufactures pressure vessels as per European Standards (EN 13445-3). We would like an approval for CRN. However to my knowledge, not all Provinces accept "design + materials" as per European Standards. We will follow then the ASME...
  3. manaliac

    Force/Moment variation on fatigue analysis

    Hello DB123, Each wave orientation and wave height are taken into account (you change your input data each time) for the three loadcases. Could please write to me where I could find the output describing the force/moment variation. Thank you, M.
  4. manaliac

    Force/Moment variation on fatigue analysis

    Hello DB123, Each wave orientation and wave height are taken into account (you change your input data each time) for the three loadcases. Could please write to me where I could find the output describing the force/moment variation. Thank you, M.
  5. manaliac

    Force/Moment variation on fatigue analysis

    Hello everyone, I am working on wave induced fatigue on a pipe under Caesar II. My loadcases are : 1 (OPE) W+D1+D2+T1+P1+WIN1+WAV1 2 (OPE) W+D1+D2+T1+P1 3 (FAT) L3=L1-L2 I woulk like to know how I can generate on output the force/moment variation on my nodes/elements? I am not sure that...
  6. manaliac

    Export correct geometry to another input file

    Hello everyone, I have two Caesar II input files, the first one is with the correct geometry and the wrong displacements/restraints/wind/current_conditions, while the second one is the opposite (wrong geometry and correct parameter). I would to know how do you import the correct geometry into...
  7. manaliac

    Tie contact error in a heat transfer analysis

    Hello, Im trying to run a heat transfer analysis on a box in abaqus standard (steady state). A bulkhead is in the middle of the box tied to the two sides. The BC's are two different temperatures on the different sides of the box. The analysis stops with a message error: there is more than one...
  8. manaliac

    How to create an ASCI file after running an explicte analysis

    Hello everyone, After running an explicite analysis, I wanted the stresses on some elements sets to be written on an ASCI file. I would like to know, please, what do I have to write on the input file so I can generate a .fil ? Thanks.
  9. manaliac

    Negative contact energy

    Hello everyone, I am modelling the application of a pressure on a box laying on three wedges. I used contact surface-to-surface between the three wedges and the bottom shell of the box, with some friction(0.2). unfortunaltely, when I am looking at the energies outputs, the energy due to...
  10. manaliac

    Surface to surface contact between deformable and rigod parts

    I would like to add, that when I desactivate the contacts between the round fillets and the bottom surface of the bow,the stresses are lower than the standard case(without round fillets).
  11. manaliac

    Surface to surface contact between deformable and rigod parts

    Sorry to bother again, but I added some round fillets to the wedges (supports) to lessen the level stress, I created contacts (penalty) between said round fillets and the bottom surface of the box. The round fillets are added to the existing surfaces of the wedges so the stresses had to be less...
  12. manaliac

    Surface to surface contact between deformable and rigod parts

    Yeah I tried to apply a small displacement, but as you said I am working on a dynamic analysis, even though I am trying to have a load and results that tend to a quasi static analysis. Thank you for all of your advices, it was very interesting to learn so much about contact intiation techniques...
  13. manaliac

    Surface to surface contact between deformable and rigod parts

    Well, I am using explicit dynamic. I read in one of your many replies, that sometimes it can ben convenient to create a step where a displacement is applied to the first surface, while the second is constrained, to activate the contact mechanisms. If you can tell me, some details about such...
  14. manaliac

    Surface to surface contact between deformable and rigod parts

    Thank you again, but I am using abaqus explicit so I dont have automatic tolerances as contact control options!! Do you know any other options that permit overclosure or penetration? You will find attached a 3D shot of my model...
  15. manaliac

    Surface to surface contact between deformable and rigod parts

    Thank you so much for your answer! I think you are right about the displacements of the impactor (rigid), I am really a newbie on Abaqus, so please can you tell me how I can add automatic tolerances to smooth these slips? Here is a picture of my model, with the pressure applied to the impactor...
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