Hello all,
I am currently working on the FE modeling of anchors installation into the soil using the CEL analysis in Abaqus. I tried to use the hypoplastic vumat for sand in my simulations but i am always getting distorsions error once the anchor begin to penetrate into the soil. Notice that my mesh is very regular and that i have well verified the relevance of the constants and initial conditions. Do you have an idea on what could be the reason behind the error?
Thank you in advance.
ELHAJ.

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