Contact 2D surfaces
Altair EmployeeHello,
I am testing a cylinder that is squashes by another cylinder. The problem is the model is 2D axis-symmetric and I cannot do a contact between the two 2D cylinders sections.
May anyone help in this?
What is preferably to add rigid body and apply the load to the its center node or draw another 2D section and make contact between both cylindrical sections?
And how to do the rigid body method without errors?
the model attached.
Answers
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Hi,
You can use contacts for example type 3 or type 5.
Please post solver related queries in Analysis forum instead of pre-processing for a quick reply.
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Hi SamuelIshak,
the procedure to create type 5 contact interface can be found in the video from 0:30 to 1:10
In short:
-create ^edges components by using find edges command on the tools>edges panel
-create contact segments by selecting edge plot elements in the analysis>contactsurfs with card image set to SurfSeg
-create contact type 5 in analysis>interfaces then add contactsurfs to master and nodes to slave
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hi @Ivan
Actually I cannot see the video as it has (.swf) format. if you have the link for it, it will be easier?
and thanks for the explanation!
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Hi,
the video was posted in a similar topic, however it is in .swf format.
The video demonstrates the steps I have alrady explained.
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Hi @Ivan
I dont have hypercrash to do exactly like the video, but I changed the (.rad) file from /line/seg to /surf/seg; however, the analysis gives me this error:
ERROR TRAPPED : REPORT TO LISTING FILE
ERROR ID : 760what is the wrong?
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Hi,
there are so many modeling errors I suggest you rebuild it just for practice.Be careful when assigning element types (the 2D elements should be QUAD and edges should be plot elements).
Use 1d>config edit and elem types panel to edit and set default elements respectively.
Also, I am able to change by card edit from /line/seg to /surf/se in HM so it looks like this issue is solved in newer releases.
Attached is tthe edited model which is able to run. Note that the concentrated load was not assigned to nodes so I picked those arbitrarily.
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