Interfaces around corners

Hi João,

I would say that your approach is correct.

Although it is not always necessary, it is a good modelling practice to prevent stress oscillations by specifying additional interface elements inside the soil body. However, remember that these (extended) elements should not introduce an unrealistic weakness in the soil.

For example, when using Rinter < 1 for these interface elements, an unrealistic strength reduction is introduced in the ground, which may lead to unrealistic soil behaviour or even failure. Therefore, special attention should be paid to these interface elements’ properties. For instance, it is advised to create a separate data set with Rinter = 1 and to assign this data set only to these particular interfaces (extended beyond the plates).

Generally, the subject of stress oscillations is complex and can be attributed to different reasons, such as the density of the mesh, the smoothing of results, etc.

Hi João,

I would say that your approach is correct.

Although it is not always necessary, it is a good modelling practice to prevent stress oscillations by specifying additional interface elements inside the soil body. However, remember that these (extended) elements should not introduce an unrealistic weakness in the soil.

For example, when using Rinter < 1 for these interface elements, an unrealistic strength reduction is introduced in the ground, which may lead to unrealistic soil behaviour or even failure. Therefore, special attention should be paid to these interface elements’ properties. For instance, it is advised to create a separate data set with Rinter = 1 and to assign this data set only to these particular interfaces (extended beyond the plates).

Generally, the subject of stress oscillations is complex and can be attributed to different reasons, such as the density of the mesh, the smoothing of results, etc.