Modeling with ASDEmbeddedNodeElement

polatd
Posts: 15
Joined: Wed Jun 07, 2023 2:11 pm

Re: Modeling with ASDEmbeddedNodeElement

Post by polatd » Tue Apr 16, 2024 10:50 am

I'll be happy if you can help me

polatd
Posts: 15
Joined: Wed Jun 07, 2023 2:11 pm

Re: Modeling with ASDEmbeddedNodeElement

Post by polatd » Wed Apr 17, 2024 12:50 pm

Hi STKO team,
I solve convergance problem
but now I don't know how to visualize the masonry wall or cracking pattern.
and also I have problem like in the figure,

The connection between the concrete and the infill wall does not seem to be working properly.

How can we operate this connection appropriately
infill.PNG
infill.PNG (420.16 KiB) Viewed 275 times
Thanks.
Attachments
infill2.rar
(480.78 KiB) Downloaded 18 times

kesavapraba
Posts: 301
Joined: Sat Mar 28, 2020 2:25 pm

Re: Modeling with ASDEmbeddedNodeElement

Post by kesavapraba » Wed Apr 17, 2024 1:10 pm

Hi, It is because you have created the interaction between the masonry infill and the RC elements, however, no conditions (for example, EDOF) has been assigned to the interactions. Please make sure the interaction has appropriate conditions.

To visualize the crack/crush pattern, damage parameters (d+ crack and d- crush) in Gauss plot can be useful. Please remember that the damage parameters come from the DamageTC3D material model.
:: With best wishes ::
Prabakaran Kesavan

STKO Team
Posts: 2257
Joined: Tue Oct 29, 2019 8:45 am

Re: Modeling with ASDEmbeddedNodeElement

Post by STKO Team » Thu Apr 18, 2024 8:09 am

It's because your local axes for contact are wrong.
In 3D it's the local Z axis that should go from master to slave

polatd
Posts: 15
Joined: Wed Jun 07, 2023 2:11 pm

Re: Modeling with ASDEmbeddedNodeElement

Post by polatd » Thu Apr 18, 2024 3:59 pm

Thanks for your help,

I assigned the local axes to be the z direction in 3D, as you said.

But I couldn't understand why the connection between the infill wall and the concrete did not match. (like in the figure)

I saw in previous studies on the forum that no condition was assigned between the infill wall and the concrete.
How should I assign the Condition you mentioned?
Attachments
infill3d.rar
(447.79 KiB) Downloaded 17 times
interaction.PNG
interaction.PNG (314.37 KiB) Viewed 263 times
local_axes.PNG
local_axes.PNG (59.39 KiB) Viewed 263 times

STKO Team
Posts: 2257
Joined: Tue Oct 29, 2019 8:45 am

Re: Modeling with ASDEmbeddedNodeElement

Post by STKO Team » Fri Apr 19, 2024 10:49 am

The problem now is not the contact. If you look carefully you will see that the mortar layer near the frame is crushing.

Just use smaller time steps.
80 mm in 100 steps is 0.8 mm per step.
0.8 mm is 8% of the mortar thickness (10 mm), so the instantaneous compressive strain in the very first iteration is almost 0.08 !!! way after the crushing of mortar!

Keep in mind that everytime you have softening, it's very important to use small time steps. At least small enough not to induce huge strains (higher than the peak) instantaneously.
INFILL.png
INFILL.png (178.46 KiB) Viewed 257 times

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