v7.31.143 WTNV143 - Application of distributed pressure on the lips of a XFEM crack in a hydro-mechanical model

Summary:

The aim of this test is to ensure the correct functioning of the extended finite element method (XFEM) in a hydro-mechanical model, in order to represent a fractured saturated medium.

In this test, it is assumed that the pore pressure is assumed to be uniformly zero throughout the field of study: the hydro-mechanical model then corresponds to a « classical » mechanical model without coupling. It is verified that there is indeed a discontinuity in the field of movement on either side of the interface. The results are compared to an analytical solution and to the results obtained with a mechanical XFEM test (similar to the ssnv203 tests, F and H models).

• 1. Reference problem
  • 1.1. Geometry of the problem
  • 1.2. Material properties
  • 1.3. Boundary conditions
• 2. Benchmark solution
  • 2.1. Calculation method
  • 2.2. Reference quantities and results
  • 2.3. Uncertainties about the solution
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
• 6. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
• 7. Modeling E
  • 7.1. Characteristics of modeling
  • 7.2. Characteristics of the mesh
  • 7.3. Tested sizes and results
• 8. F modeling
  • 8.1. Characteristics of modeling
  • 8.2. Characteristics of the mesh
  • 8.3. Tested sizes and results
• 9. Summary of results