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I am trying to run a material non-linear analysis on my sample, but I keep getting *** ERROR # 4966 *** Minimum time increment reached, analysis aborted.

User: "BryanN_22537"
BryanN_22537
Altair Community Member
Updated by BryanN_22537

Hello! For context, I am making a simulation of a 3-D tensile sample. The sample is compromised of a PETG base with carbon fiber filaments implemented inside the base. I am trying to run a material non-linear analysis and I keep recieving *** ERROR # 4966 *** Minimum time increment reached, analysis aborted.

I have an idea that it might have to do with the auto contact setting I implemented or how the sets I created for the pulling load and boundary condition were made but I could be wrong. Please let me know if I need to clarify any information. 

Attached is my hm file. 

11_1.hm

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    User: "GTT Johan"
    GTT Johan
    Altair Employee
    Updated by GTT Johan

    Hi
    regarding the loads, is supposed to have FORCES on all nodes in you force set?
    image

     

    A good start would be to apply displacement control on the "right side" instead of forces.

    Regarding time step min you can control this with the nladapt card

    $HMNAME LOADSTEPINPUT        3"nladapt"
    NLADAPT        3DTMAX        0.1DTMIN     0.0001

    Kind regards
    /Johan

    User: "GTT Johan"
    GTT Johan
    Altair Employee
    Accepted Answer
    Updated by GTT Johan

    Hi
    I did add a RBE2 to the left side holding the specimen and then added a rbe3 for loading on the right side!
    Updated the BC and force set to just include 1 single node each
    Model runs fine now.

    image


    /johan

    01_BC_and_tension_elements.fem
    User: "BryanN_22537"
    BryanN_22537
    Altair Community Member
    OP
    Updated by BryanN_22537

    Hi
    I did add a RBE2 to the left side holding the specimen and then added a rbe3 for loading on the right side!
    Updated the BC and force set to just include 1 single node each
    Model runs fine now.

    image


    /johan

    Hello!

    Thank you so much! I'm very new to Hyperworks so I am trying my best to learn as much as I can. The reason why I wanted to make a set is because it was my understanding that doing so for a force for example would mean that the end would have a uniform pulling load. But it turns out I had a multiple amount of loads. 

     

    I've never had to use the rigid body command but looking into it, it just seems like a better way to run the simulation. I should have looked into this before.

     

    Again, thank you for your help!

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