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  • Users: njain094
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  1. njain094

    Issue in Bloch Analysis

    Hello, I am trying to find the critical periodicity of a discrete structure using Bloch Analysis. From Bloch Analysis, I get the critical periodicity as 1x2. Now, when I compare the first frequency obtained from Bloch Analysis for the critical periodicity (i.e. 1x2) to the enlarged 1x2 unit...
  2. njain094

    Is it possible to do multiple load case in one step in ABAQUS with UEL subroutine?

    Hello, I am trying to do multiple load case analysis in a static linear perturbation step with user element subroutine. It seems that only the first load case is solved properly. I do not get the correct results for other load cases. Please let me know if somebody knows how to do multiple load...
  3. njain094

    How can I perform Buckle Analysis with Bloch boundary conditions in Abaqus?

    Hello, I am trying to perform Buckle analysis with Bloch boundary conditions. It gives me an error saying a Nonzero boundary condition is not specified. But I did define a non zero boundary condition at the virtual node. I have already used Bloch boundary conditions with frequency analysis and...
  4. njain094

    How to calculate stress components in UEL and then display it in ABAQUS GUI?

    Hello, I ran a static general simulation where I overlapped a dummy mesh over user elements to capture deformation. Now, I would like to see the stresses in the user element displayed on this dummy mesh. I understand that first I have to define stresses in UEL then I have to use UVARM to...
  5. njain094

    How to introduce geometric non-linearity in Abaqus UEL or theory behind NLGEOM in Abaqus.

    Hello everyone, I am working on UEL to create my own element. I observed that in my model there are large displacements. So, I need to incorporate geometric nonlinearity in the model. If anyone knows how to introduce geometric non-linearity in UEL please let me know. Or if you know the theory...
  6. njain094

    How do I model rotational spring or give rotational stiffness at a node in Abaqus/standard?

    I am trying to model a normal spring and a rotational spring to find Pcr of the system. I have attached a figure for a better understanding of my problem. (The actual problem is different than this one. This problem is just to know how to model a rotational spring in Abaqus). I am able to model...

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