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I'm trying to do compression test on sphere, compressed by a moving block (under velocity) and a rigid block at the other end. But the block is passing through the sphere and not impacting it.
Hi Prajwal,
Did you define an interface between the block and sphere?. If not, create an interface between them and try running the analysis. The contact algorithms in RADIOSS will check for potential penetration between the master segment and slave set.
Please go through this video tutorial on contacts: https://altair-2.wistia.com/medias/h5zplpn5ct https://altair-2.wistia.com/medias/0xlcd7hliu
I already had the Type 7 interface defined between the contact surfaces I had created. Still penetrates.
Make sure that the contact is defined correctly. Review the contact in interface option to confirm it. And also did you provide the Gapmin value in the interface parameters?. If problem persist, please share your model.
Yes, I have defined GapMin (problem still exists). I have shared the model file.
Unable to find an attachment - read this blog
I just modified the model. The lower block was not made rigid in your model. It was created and proper boundary conditions were applied.
Please follow a constant unit system. In your model the unit system followed for material parameters were wrong which affected the time step. There must not be an error in the units system that this data is given in.
Please check the model attached along.
Thank you very much for the help.
In the first place, I wanted a graph of applied load vs displacement.
Is there a way I can apply varying loads on the upper block (0 - 100N, in stages of 5N), at a fixed velocity (50mm/s) ?
You can apply this varying loads on the upper block using concentrated load (/CLOAD). You can define a function (Load vs Time) and based on the function the loads will be applied on the upper block.
Please find the attached video (.wrf format ,opens in webex player) which shows combining plots in HyperGraph.
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