Defining 2D shell contacts

Unknown
Unknown
edited September 2023 in Community Q&A

Hi,

I am trying to define a shell contact between a circle and a rectangle in a 2D problem, as shown in the picture.

imageimage

However, the result showed no contact between the circle and the rectangle. 

image

I don't know what steps I am missing. My expected result will be like this

image

I would like to attach my hm file.

Thanks,

Hung

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Answers

  • Kranzeder
    Kranzeder
    Altair Employee
    edited September 2023

    Hi Hung

    Optistruct doese not provide Edge2Edge contacts.
    I would suggest to use CGAP(G) elements with matching node to node mesh.
    I have attached an example where this kind of modelling is used.

    Hint: In case models are symmetric it is a general recommendation to work with half, symmetric model only.

  • Unknown
    Unknown
    edited September 2023
    Juergen Kranzeder_21413 said:

    Hi Hung

    Optistruct doese not provide Edge2Edge contacts.
    I would suggest to use CGAP(G) elements with matching node to node mesh.
    I have attached an example where this kind of modelling is used.

    Hint: In case models are symmetric it is a general recommendation to work with half, symmetric model only.

    Hi Juergen Kranzeder,

    Thank you for sharing. The reason I want to create contact is to constrain contact force or contact pressure in the Topology Optimization process.

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