Is there multibody with soft body dynamics?
Maksym Riabov
Sorry if I'm missing the obvious, but is there soft body simulation?
I'm looking through the PyChrono examples and it's empty.
For example, I throw a polycarbonate brick against the wall and want to see it deform (elastically). Can Chrono do it?
Radu Serban
Yes, Chrono provides FEA support.
There are several Python demos to illustrate this capability. See https://github.com/projectchrono/chrono/tree/main/src/demos/python/fea.
Of course, there are even more C++ demos. See https://github.com/projectchrono/chrono/tree/main/src/demos/fea.
--Radu
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Dan Negrut
To add to this, to save you time:
- If you are into gaming or quick simulation that looks plausible, the deformable body support in Chrono is probably not going to help you. There are many other non-Chrono solutions out there that take care of this well.
- If you are into engineering, Chrono can help you.
Dan
---------------------------------------------
Bernard A. and Frances M. Weideman Professor
NVIDIA CUDA Fellow
Department of Mechanical Engineering
Department of Computer Science
University of Wisconsin - Madison
4150ME, 1513 University Avenue
Madison, WI 53706-1572
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Maksym Riabov
Yes, I see the FEA support, but does that FEA apply to multibody? It seems all the examples are static.
I'm specifically interested in testing, say, whether an injection molding machine will hold under a full cycle, which means a lot of frames and a lot of different forces, and certainly a lot of mesh.
Thanks.
Dan Negrut
FEA applies to moving parts, e.g., https://docs.qblade.org/src/theory/structure/chrono/chrono.html.
Are you interested in how the machine deforms while you inject material that itself deforms? That means that you need to figure out the force coming from the injected material - this is a prerequisite for the deformation of the machine. Even if you have a FEA model of the machine, do you plan to come up in Chrono with the injected-material induced forces that are applied to this FEA model?
Dan
---------------------------------------------
Bernard A. and Frances M. Weideman Professor
NVIDIA CUDA Fellow
Department of Mechanical Engineering
Department of Computer Science
University of Wisconsin - Madison
4150ME, 1513 University Avenue
Madison, WI 53706-1572
---------------------------------------------
To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/a73db6fc-0f4d-44e7-979f-e91d73f7943an%40googlegroups.com.
Radu Serban
Most demos in https://github.com/projectchrono/chrono/tree/main/src/demos/fea are actually dynamics.
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