Hello Mr. Mikola,

I have to set the primary stress state at an angle that can be explained by the fact that at this point, a deflection occurs in the tunnel (stress direction alignment) What steps are needed to implement a rotated primary stress state in the model? How can we identify possible damage zones around the tunnel structure?
Could you please also tell me, which command is for CWFS in Adonis? What possibilities exist for incorporating the CWFS approach in Adonis?

In the photo you can see, what I mean by rotation. This was an example in a programm called FLAC2D.
​​​​​​My question ist, is there a possbility in ADONIS too?

Thank you
Rebecka

Hi,

For rotated stress, there's no direct method available. However, you can project the stress onto the x and y axes and then use stress initialization to set it up. The program includes a stress initialization feature, which is detailed in Tutorial #7.

For CWFS, you can use the strain-softening constitutive model in the program. This model controls hardening and softening through predefined cohesion and friction, similar to the approach described in the FLAC manual and examples. To implement this, create a table with plastic shear strain in the first column and cohesion and friction in the second column, then specify this table in the constitutive model dialog.

-Roozbeh

Hello,

thank you so much for the quick response. I will try to continue my work with your advice and I will share my results as soon as I can.

Thank you!
-Rebecka