Wall-Soil interaction problem with contact2D and PressureDependMultiYield material
Posted: Tue Mar 25, 2025 9:47 am
Dear STKO
I am trying to improve the pseudo-static wall-soil model I posted before with PressureDependMultiYield02 material in order to capture the accumulation of earth pressure during every two constant wall displacements. I have some problems with the model.
After applying 5 cyclic displacements, when the moveable wall is pulled away from the backfill, the soil element always starts failing and intrudes into the wall element. And a small part of the soil element is in tension, which is unrealistic. This makes the model harder to converge. Is it a problem with the contact2D interface or the PressureDependMultiYield02 material?
I attach the model here. What do you think I am doing wrong? Looking forward to your suggestions.
Best regards
Ziyan
I am trying to improve the pseudo-static wall-soil model I posted before with PressureDependMultiYield02 material in order to capture the accumulation of earth pressure during every two constant wall displacements. I have some problems with the model.
After applying 5 cyclic displacements, when the moveable wall is pulled away from the backfill, the soil element always starts failing and intrudes into the wall element. And a small part of the soil element is in tension, which is unrealistic. This makes the model harder to converge. Is it a problem with the contact2D interface or the PressureDependMultiYield02 material?
- 微信截图_20250325091619.jpg (112.08 KiB) Viewed 2776 times
Best regards
Ziyan