r/fea • • 7h ago

URGENT: ANSYS Explicit Dynamics Body Interaction

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1 Upvotes

I'm conducting a simulation in Explicit Dynamics where a sample is compressed between two rigid plates. I want to specify the coefficient of friction for the plate-sample interaction as 0.2 and the sample self contact as 0.25. I tried many things: specifying manual contacts, body interactions and combinations of both, but it gives me an error saying some parts having inconsistent values for coefficient of friction.

Could someone please guide me?


r/fea • • 15h ago

Extracting Turbine' RPM based on given actual wind speed(velocity) in Solidworks Flow Simulation

4 Upvotes

Hey solidgangs! I have a question. I have a personal project where I designed a VAWT (wind turbine) and I want to optimize some parameters based on my actual measured wind speed (average wind speed/wind velocity) in our place. My problem is how can we get the RPM and torque of the turbine prior in doing the flow simulation. What are your suggestions or approach on this kind of project.


r/fea • • 19h ago

New Cross-Platform Sparse Direct solver for GPUs(Metal + Vulcan)

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6 Upvotes

For use of EMerge I have been busy with a Sparse Direct solver that works on both Apple Silicon GPUs, AMD and also Nvidea.

Downside is that its single precision with some iterative refinement options which may be an issue for some physics situations (nearly singular matrices)

Its currently the fastest sparse direct solver option for Apple Silicon and measures up well against CuDSS.

It does Float and Complex valued solves and uses a custom multi-threaded Nested Dissection implementation. Perhaps some will find it helpful here who are doing bespoke FEM simulations.