Project file on GitHub
## Problem description

## Results and evaluation

We solve a linear elastic small deformation problem with a pre-existing fracture using the lower-dimensional interface element (LIE) approach.

See this PDF for detailed problem description.

The one-sided incompressibility constraint for fracture models is described in this PDF.

Result showing sliding of the upper part of the domain along the fracture:

Same benchmark setup with plane strain conditions in 3D:

Comparison with 2D setup yields identical results (up to numerical differences in order of 1e-15); Resulting displacement on the left axis, and error on the right:

This article was written by Norihiro Watanabe. If you are missing something or you find an error please let us know.
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