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Simulation keeps reverting: PCGLSS0102:Assembled Stiffness Matrix has a negative diagona 

Question asked by Eg Gloo on Feb 12, 2016

Hello

 

I have a spring on which I'm trying to run a simulation (attached). Each time it reaches about 2.4%, it reverts back to 0%. It seems to have a hard time "solving contact constraints". I've already spent almost 9hrs and it is still reverting. The warnings I'm getting are:

 

PCGLSS0102:Assembled Stiffness Matrix has a negative diagona

PCGLSS0102:Assembled Stiffness Matrix has a negative diagona

PCGLSS0102:Assembled Stiffness Matrix has a negative diagona

PCGLSS0102:Assembled Stiffness Matrix has a negative diagona

 

Screen Shot 2016-02-13 at 12.36.21.png

 

Does anyone know why this might be the case? I'm running 2016 SP1.

 

Thanks

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