What is Error 14 OptiStruct and how do I rectify this?

Shay
Shay Altair Community Member
edited February 2022 in Community Q&A

I am studying the topology of a turbine guide vane as part of my third-year project. I meshed the structure using auto mesh (trias) and then 3D tetra mesh. I created a simple load case with a single load and a SPC's along a single face. 

I keep receiving this error message and I'm not too sure how to fix this. i have attached a screen capture below of the message and I have also included the files that I was using.

image

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Answers

  • Brett Ramsey_20633
    Brett Ramsey_20633 New Altair Community Member
    edited February 2022

    So what you have here is a solid (tetra) and shell (tria) mesh. The error you are getting above stems from you assigning a solid property (PSOLID) to your shell elements. These need to be assigned a PSHELL property.

    I do not know if this is the intended result or not. Nonetheless, the mesh will need to be improved for you to be able to run this model as on my end it fails. This can be done by using the elements menu, and the ribbon tools you can use the change your shell and solid elements. Under the edit drop down, you can find tools to help you with your solid mesh optimization. 

    image

    Hope this helps

  • Shay
    Shay Altair Community Member
    edited February 2022

    Im trying but i cant seem to figure out how to fix this. Ive tried to make 2 components and assign the surface elements a separate component with PShell property and the volume tetras a component with the PSolid property but it keeps producing the same error.

    I've also tried doing optimisation with solely the volume tetras with a PSolid property but that produced a different error message regarding quality of meshing.

    I will keep trying and if I manage to fix it I will post an update.

    Thank you.

  • Brett Ramsey_20633
    Brett Ramsey_20633 New Altair Community Member
    edited February 2022
    Shay said:

    Im trying but i cant seem to figure out how to fix this. Ive tried to make 2 components and assign the surface elements a separate component with PShell property and the volume tetras a component with the PSolid property but it keeps producing the same error.

    I've also tried doing optimisation with solely the volume tetras with a PSolid property but that produced a different error message regarding quality of meshing.

    I will keep trying and if I manage to fix it I will post an update.

    Thank you.

    I would look at our organize ribbon in the assembly menu for assigning a elements to a new component. 

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