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contact problem
Posted 2022年5月30日 GMT-4 11:18 Structural Mechanics Version 5.6 0 Replies
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Hi all,
I'm trying to simulate 2 expanding particles (should be more later on and also in 3D), which are connected by a binder and constrained in a vessel. Therefore I am using an initial strain with an auxiliary parametric to simulate the deformation (only elastic), which should be around 100%, and the occuring stress. I have several problems: 1. While using the contact node, strange things happen like the particles jump around and are suddenly at a completely different place. I tried to solve this with a fixed constraint (a boundary or an inserted middle point) or a prescribed displacement of 0, but that seems to cause some problems with the mesh. Is there a way to fix the particles, so that they stay at the same place while expanding? 2. With the binding material of the particles and the adhesion/decohesion node, i get error messages for everything I do and the particles either don't expand at all or the simulation stops at low values of elastic strain.
I would be very grateful for any hint to solve these problems
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Hello Christoph Scheinecker
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