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Message #08954
[Question #243909]: Representing beams, wires, grids, with connected cylinders
New question #243909 on Yade:
https://answers.launchpad.net/yade/+question/243909
Hello everyone,
I am new to Yade. I have been working on FEM for quite a while but have little knowledge of DEM.
There are a few nice videos of representing beams, wires, grids, with connected cylinders in the Yade/wiki/examples. I am very interested in those simulations and would like to know more, such as the physical meaning and mechanical formulation behind them. I have searched the Yade website and couldn't find too much relevant messages. I guess my question is probably too general and let me make them more specific as below.
1) If I am correct, a wire or beam is created by connecting a series of cylinders and particles. Apart from geometry, what is the difference between a cylinder and a particle? What are the interactions defined between a particle and a cylinder for a wire or a beam model in Yade?
2) What is the typical length scales for a cylinder and a particle in a wire or beam model?
3) I guess a wire or beam model has much less elements than a solid model. Is the computation time much less as well? Is a fast desktop good enough to perform the simulations shown in the examples?
Can anyone shed me some light on these questions?
Many thanks and best wishes,
David
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