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  • Users: a126z
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  1. a126z

    abaqus pre-tension

    When applying a pretension of, for example, 1e6 N to anchor cables in ABAQUS CAE, should one use 'bolt loads' or 'Defining an initial stress'? Or neither of these? The results mentioned above were obtained using the method of creating and editing bolt loads.
  2. a126z

    abaqus pre-tension

    In the Abaqus system shown in the figure, three analysis steps are set up: step1, step2, and step3. In the step1 static analysis step, a pretension is applied to the top of six anchor cables. In the step2 static analysis step, net buoyancy is applied while the pretension remains unchanged, and...
  3. a126z

    load point

    For a general section beam element with eccentricity, if the output point is set at the centroid position z=-1, will the line load be loaded at the centroid position z=-1 or the beam element position z=0 on the diagram?
  4. a126z

    ABAQUS element stress values

    Why are the element stress values obtained using the PYTHON code different from the element stress value obtained by querying directly in the CAE interface? The code is as follows: odb = session.openOdb('odbname', readOnly=False) ele =...
  5. a126z

    ABAQUS CTF

    Thank you for your help. I understand the difference
  6. a126z

    Internal forces in ABAQUS

    I would like to ask a question about internal forces in section: in ABAQUS, the output results of internal forces in section of beam elements (SF1,SF2,SF3,SM1,SM2,SM3) are obtained based on the local coordinate system. Are these 6 components based on the local coordinate system that was not...
  7. a126z

    ABAQUS CTF

    I would like to inquire what is the difference between the two connections below? (1) With a connecting beam in the center, the end points of the connecting beam are connected with beam connectors; (2) Without a connecting beam in the center, the two points on the beam are directly connected...
  8. a126z

    ABAQUS CTF

    Why is it not possible to output the connection force of a rigid connection of multiple separated lines using ABAQUS CTF? I wonder what the problem is besides? Even though the output CTF is set in the field output, I can't find the CTF in the ODB file, or all the CTFs and CTMs are 0. What is the...
  9. a126z

    ABAQUS sketch

    Thank you very much for your answer. I forgot that I could restart ABAQUS. After restarting ABAQUS my problem was solved.
  10. a126z

    ABAQUS sketch

    Question: What is this thing in the sketch? I didn't draw it, it's unnecessary, but I can't delete it
  11. a126z

    Output coordinate system

    in ABAQUS help document, it is "Element-based results for beam and truss elements cannot be transformed; they are always displayed in the local element orientation system. ". In the figure below, when the beam element has a large displacement, the local coordinate is which of the coordinates...
  12. a126z

    The problem of support reaction forces

    No, it is not the apllied load. The applied load is on the concentrate force which is 1e7 N in the top of the free section. Yes, the values in the table refer to the reactions of the support. Even though I tried a simpler 3D beam model, the model still has a small reaction force in the...
  13. a126z

    The problem of support reaction forces

    Thanks for the answer. Because I tried to load the cantilever beam with the same equivalent force for the combined forces, I found that these tiny amounts are not equal at the supports. Although this is a small order of magnitude, I wanted to explore what this small amount is due to. According...
  14. a126z

    Output coordinate system

    In ABAQUS, is the SF and SM of the nodes output from the beam model based on the post-deformation beam local coordinate system or the pre-deformation beam local coordinate system. If it is a post-deformation beam local coordinate system, does this mean that the orientation of this coordinate...
  15. a126z

    The problem of support reaction forces

    1. In ABAQUS, for a three-dimensional cantilevered cylinder structure, there is only a force in the Y direction at the top of the free end, so why is there a branch reaction force in the X and Z directions at the solid end (with all six degrees of freedom constrained)? 2. The support reaction...
  16. a126z

    ABAQUS Internal force output after section slicing

    For a 100m long cantilever beam, one end is restrained in all 6 degrees of freedom and one end is free. I found that ABAQUS intercepts the internal force (SF,SM) of the section at a position 0.25m from the end as the value of the end. What is the reason for this? If an external force of 1e7N is...
  17. a126z

    ABAQUS Internal force output after section slicing

    As shown in the figure below, a cantilever beam is subjected to a vertical downward force at the apex of the free end. It is logical that only fy,mx has significance, and fy,fz,my,mz are all 0. But why do fy,fz,my,mz still have values?Why is fy uneven -1e7?
  18. a126z

    tie vs mpc in abaqus

    Can tie (but not constraining rotational degrees of freedom) be equivalent to MPC PIN? What is the difference between these two types of constraints as shown below?The calculation results of them.have little difference.
  19. a126z

    Abaqus constrain

    1. In ABAQUS, when tieing a face and a node set, if the slave face is composed of a node set, is it only at the node's contact position with the face that there will be constraints? Will slave nodes and slave nodes bind to each other? Will the part of the slave node that is not in contact with...
  20. a126z

    ABAQUS and PYTHON continuous time history solving

    But why can this process be done efficiently inside ANSYS by writing APDL command flows and recording macro files? I think ABAQUS also has such a way to do it quickly.

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