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  1. an318is

    DISP Subroutine and NLGEOM

    Further to this, I have today been attempting to use the *TRANSFORM method to apply boundary conditions relative to the current position of the node. This is at least what I took from reading the abaqus user manual. My understanding is, that if I apply a transform to a node, the new co-ordinate...
  2. an318is

    DISP Subroutine and NLGEOM

    Hello all, I have recently found an unexpected irregularity which I can not seem to get around. Basically, what I am trying to do is seemingly very simple. I have a subroutine which allows me to enter a target node position to apply an unknown displacement to a specific node. I say unknown...
  3. an318is

    Contact algorithm performance?

    Hello, I am running a Dynamic Explicit contact based simulation that contains 2 deformable bodies and 36 rigid bodies. One of the parts will only ever see contact with 18 of the rigid bodies and the other part will have contact with the other 18. The two deformable parts will also be in...
  4. an318is

    Controlling a 3d path of a rigid body?

    Hi, Thanks for the reply Rob. The issue is the path is quite complex. I was hoping that there was perhaps a function available to perform a complex displacement in a single step. The closest I have seen is the user function vdisp. Where I could write a function to input text files of the...
  5. an318is

    Controlling a 3d path of a rigid body?

    Hi all, I am looking at simulating a process and require to control the path of a rigid body. Only translational movement is required. It will be along a path defined by unevenly spaced points, at a constant velocity. Does anyone know how this can be achieved? Thanks
  6. an318is

    Is it possible to change connector behavior?

    Good idea akaBarten. I have implemented it now and it is working perfectly. I changed the LOCK to ALL and implemented rotational degrees of freedom. Couldnt ask for a better implementation. Thank you very much. Regards Adam
  7. an318is

    Is it possible to change connector behavior?

    I made some attempts to get around the observed behavior. Basically, as I understand it, the force calculation connecting the two nodes is performed based on the relative distance between them. Since their original position was about 10mm apart, when I changed the connector stiffness component...
  8. an318is

    Is it possible to change connector behavior?

    Thanks for your help akaBarten. The code did exactly what I wanted. It was very useful to learn about field variables too. However, there was one side effect that I didnt think about. Once the connector is stiffened up, the nodes are pushed back to their original positions. They dont maintain...
  9. an318is

    Is it possible to change connector behavior?

    Hi, I have been working on the same problem for quite some time. I have attempted a variety of ways to solve the problem but have not had much luck. The current method I am hoping is possible requires the modification of connector behavior definition. Basically, I have a simulation set up with...
  10. an318is

    Adding fastener at the beggining of restart analysis?

    Hi, Does anyone know if it is possible to add a fastener at the start of a restart analysis. Im using the following code to try; however, I get a "system error code 5". Can someone tell me if it is possible, and i just have something going wrong, or no its not possible? I would have thought if...
  11. an318is

    Adding elements in Abaqus Explicit

    Hello everyone, Just wondering is someone can provide me with some direction on a problem I am trying to solve. In short, I would basically like to know if there is a way to turn on an element, in particular a fastener, at a specific step in the simulation using Abaqus Explicit. I know this can...

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