I am concerned about the interface between the light green element and the violet element?
Light green element: soil material
Violet element: Volume element representing the retaining wall having concrete properties.
I have Rinter value for both light green soil element and violet concrete element. I have also clicked the option of interface from adjacent soil. So for interface properties, which value of Rinter will it take?
Dear Piyush,
The interface is drawn at the "green side" of the line that separates the green and violet materials, so it will take the properties from the green material.If you would have applied a positive interface it would have been drawn on the "violet side" of the line and then it would have taken the properties from the violet material.
With kind regards,
Dennis Waterman
So if I have R inter values defined individually for 'green element' and 'violet concrete element', it will definitely take the R inter of green element and not violet element. Is that correct? Does the same hold true for PLAXIS3D as well,if this is the case in PLAXIS3D?In 3D
everything is volume element. My question is : In my understanding R inter of pink bit should be changed so that I get correct interface stresses (corresponding to 0.2) at the interface of pink and the below grey coloured interface. If I change the volume element R inter which is below the grey interface, it wont affect the results. Am I correct?
Yes, it will take the values from the material set in which the interface is located. Which is in the picture above the green material.This concept works the same in 2D and 3D.
Thanks Dennis for the prompt reply. Can you please answer the updated question with the figure. I am sorry for updating it after you answered.
I'm sorry, but I can't make much out of the picture. But I have explained 2 times the same and you ask now for a 3rd time how it works. Yes, it takes the R_inter from the soil layer in which the interface is located, and no, changing the R_inter for another layer thus doesn't have an influence.
Note, by the way, the changing the R_inter changes the strength, not necessarily the stresses. And a second note: a value of 0.2 is seriously low for an engineering application. Usually R_inter is not chosen less than 0.5.