Benchmark example H-M coupled, Linear, single fracture

Hi All,

does anyone by chance know the analytical solution? as it is not very clear in the documentation. thanks,


And it says vertical stress is 50 MPa, while fluid pressure is 11 MPa, and injection pressure is 11.9 MPa. Then, how could the effective stress on fracture surface be tensile? The fracture wouldn’t open, instead, close/penetrate.