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I built a underground structure dynamic analysis model, but when I appear the following error analysis of the gravity... warning SuperLU::solve(void)- Error 1 returned in factorization dgstrf() warning NewtonRaphson:: solveCurrentStpe() -the LIinerSysOfEqn failed in solve() StaticAnaysis::analyze() ...

I built a underground structure dynamic analysis model, but when I appear the following error analysis of the gravity... warning SuperLU::solve(void)- Error 1 returned in factorization dgstrf() warning NewtonRaphson:: solveCurrentStpe() -the LIinerSysOfEqn failed in solve() StaticAnaysis::analyze() ...

I should choose what kind of contact element in a dynamic analysis
thanks

Thank you so much for your reply to my question,,,,
Wishes you to work happily

skamalzare wrote: > Hi, > > Perhaps, an important point you might want to consider is how the structure > is connected to the soil. If you connect them before gravity analyses, > there is a great chance you will get negative skin friction. Simply, > because soil settles during gravity analysis and r...

What is a periodic boundary

hello Who did the underground structure dynamic nonlinear analysis This is my analysis modeling process, 1.Soil - structure interaction model is established 2.The analysis of elastic and plastic of site soil 3.The gravimetric analysis of underground structure 4.The dynamic analysis of soil-structure...

hello Who did the underground structure dynamic nonlinear analysis This is my analysis modeling process, 1.Soil - structure interaction model is established 2.The analysis of elastic and plastic of site soil 3.The gravimetric analysis of underground structure 4.The dynamic analysis of soil-structure...

Please help me
Is there somebody can help me with providing me a example of soil-structure interation which considered the initial stress and strain

It is a 3D element with 6 dofs and CAN NOT be used in 2D domain. (Shell Element)
In No Other Way

How to simulate two-dimensional plate,
Please tell me the details.
thank you very much

Thank you very much for you can reply to my question,,I'd like to add two dimensional viscoelastic artificial boundary,Can you tell me the specific steps,Such as the selection of materials, selection of parameters..Soil quadrilateral element is selected.....

Please tell me
How to set up the viscoelastic artificial boundary