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  1. S

    Error When Calculating Minimum Stable Time Increment for Bottom-up Mesh

    I am not able to install the wrap mesh plugin since I do not have the proper account to do so as I did not purchase the license myself. I am currently trying to create a wireframe of my stent (1D) so that I can model it using beam elements. I am finding it difficult to extract the midlines, and...
  2. S

    Error When Calculating Minimum Stable Time Increment for Bottom-up Mesh

    How would I do this mapping? The stent I’m showing here is not an image created I made this on CAD. How do you create a 2D mesh to then map it for us on Abaqus? Is this something that Abaqus can do or another software is required.
  3. S

    Error When Calculating Minimum Stable Time Increment for Bottom-up Mesh

    Thank you for the response! I have adjusted it as you said and it works. Does this mean that if I have used all of the geometry in the sweep, when I apply my loads and boundary conditions then it will be as if it’s applied to the original geometry? Additionally, I do have an issue where I am...
  4. S

    Error When Calculating Minimum Stable Time Increment for Bottom-up Mesh

    I realised the section was incorrectly assigned, thank you for this!. I also wanted to ask for bottom-up meshes, how do you correctly identify mesh and geometry assignment? To make sure that the mesh is properly assigned would I have to use all parts of the geometry during the control settings...
  5. S

    Error When Calculating Minimum Stable Time Increment for Bottom-up Mesh

    I have created a bottom-up mesh using the sweep tool for this stent. However, I am having issues with being able to calculate the minimum stable time increment, as it shows this error message when doing so. I was wondering if there is a way to solve this.
  6. S

    Stent Meshing using Tet Elements

    Would this mean that I would have to somehow convert this geometry into its midline’s, and then is beam elements an option you choose when you sketch the part? I have not performed meshing with beam elements in a while. Could you please give me some more information or resources on how I can do...
  7. S

    Stent Meshing using Tet Elements

    For the stent image provided (mind the low resolution image), are there any suggestions of how to mesh this for explicit analysis. I had an issue where due to the large number and small size of mesh elements, the stable time increment was very small (x10^-11) which meant that the simulation...
  8. S

    ABAQUS Dynamic Explicit: Stent Crimping

    Do you have the plug-in file for the wrap mesh? I cannot seem to find it, or is this done with scripting that requires a separate plug-in. I would like to explore the use of this.
  9. S

    ABAQUS Dynamic Explicit: Stent Crimping

    Is this plug-in used to create stent geometries? I remember reading about this. Does this allow you to create different types of wired stents, similar to how we sketch a part in Abaqus? In terms of beam elements do you mean the element assigning in the mesh module. For example I am currently...
  10. S

    ABAQUS Dynamic Explicit: Stent Crimping

    I am currently working on fixing my mesh. I have used virtual topology to create a single face and then trying to create sections so that I can mesh. Since I will be using text elements, do you suggest any specific planes or angles of planes to ensure that the sections will create, nicely shaped...
  11. S

    ABAQUS Dynamic Explicit: Stent Crimping

    When I first ran the explicit model I waited 4 days and it was still running. But I had some warnings that I wanted to get rid of. Do you suggest that I try doing the same setup but using the dynamic implicit step? I can give that a go if you think it is more feasible. Would the implicit step...
  12. S

    ABAQUS Dynamic Explicit: Stent Crimping

    Unrelated- The STL I have decimated, converted mesh into geometry and then into a solid using FREECAD. Currently I have around 200,000 elements and I believe the minimum time step was around x10^-10 Related- For your point 2) would that mean I would have an initial step where I apply a ZSYM...
  13. S

    ABAQUS Dynamic Explicit: Stent Crimping

    I believe that there are issues with how i have defined my tie constraints, I did get this warning when running my simulation in regards to this: I am not sure how I should constrain my stent so that it does not move during the process. I have just applied coupling constraints and it has...
  14. S

    ABAQUS Dynamic Explicit: Stent Crimping

    I tried the first test you mentioned and that worked fine, but when i was trying to apply a force to a point on the stent it aborted and i got these messages. I am not sure why I am getting these errors.
  15. S

    ABAQUS Dynamic Explicit: Stent Crimping

    This is my first time running explicit analysis. I have tried using a cylinder to crimp the stent in a previous model using surface-surface contacts however this is difficult to use for stents that have too many small surfaces. Also, when using analytical rigid parts, it will not radial displace...
  16. S

    ABAQUS Dynamic Explicit: Stent Crimping

    sorry I meant to write warnings, I did not get any errors however, I ran this for 4 days and it was stuck at one time step and not continuing. These warnings kept appearing every time I ran the simulation and I had thought that they were the cause for it not continuing.
  17. S

    ABAQUS Dynamic Explicit: Stent Crimping

    Hello, I am having trouble with crimping a stent using the Dynamic/Explicit Step ( 2 steps in the model: (1) initial and (2) Dynamic/Explicit). It is aborting or stops running completely, without crimping the stent at all. I am trying to apply an inward, radial displacement (smooth step 0->1)...

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