Direct Sparse solver recommended for contact assemblies, but why?
Direct Sparse solver recommended for contact assemblies, but why?
(OP)
Hello guys,
So, why is the Direct Sparse solver recommended for (contact)assemblies?
My (contact)assembly seems to solve fine with the default FFE solver, meanwhile requiring only half the memory and solve time.
So why use Direct Sparse, why is it prefered for contact assemblies?
Thank's in advance to you all, greatly appreciated
So, why is the Direct Sparse solver recommended for (contact)assemblies?
My (contact)assembly seems to solve fine with the default FFE solver, meanwhile requiring only half the memory and solve time.
So why use Direct Sparse, why is it prefered for contact assemblies?
Thank's in advance to you all, greatly appreciated






RE: Direct Sparse solver recommended for contact assemblies, but why?
I use direct sparse almost all the time since I can reply on the results (have had some dodgy looking stress results when using FFE). In some applications, even large models, it can be quicker than FFE, depending on the setup.
RE: Direct Sparse solver recommended for contact assemblies, but why?
RE: Direct Sparse solver recommended for contact assemblies, but why?
Direct Sparse is capable of iteration and so can solve non-linear problems.
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RE: Direct Sparse solver recommended for contact assemblies, but why?
kellnerp,
is this basically the same as using FFE with "use large displacement" checked? Or is then the whole simulation non-linear, not only the contact(as opposed to using
linear with Direct Sparse)?
RE: Direct Sparse solver recommended for contact assemblies, but why?