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Concrete material model

Concrete material model

Concrete material model

(OP)
Hi all,

I am making a simple model which includes concrete and steel. For steel I am using non-linear plastic properties (TB,KINH...) and that works perfectly. This has worked perfectly also in other models.

Now I also want to include concrete material in the model, including its non-linear properties, like high compressive strength and no tensile strength. The concrete contains no rebar. My current model contains:

ET,3,SOLID65   !concrete 3d solid

MP,EX,3,32000  !elasticity
MP,NUXY,3,0.4
MP,DENS,3040

TB,CONCR,3,1,1,,0
TBTEMP,1,1                 ! only one temperature
TBDATA,1,1,1,2,40,40,1     ! Values to be filled in according
TBDATA,6,1,40,40,0.2       ! to SOLID65 element description

So far I did not get the concrete model to work. Anybody any idea what I am doing wrong?

 

RE: Concrete material model

Why is it not working? Do you have convergence problems?
Be more specific.

RE: Concrete material model

(OP)
I have observed several problems, including extreme distorted elements (solution did not finish...) "not enough data points provided", amongst others.

RE: Concrete material model

Well use smaller elements, set more substeps.

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