v3.04.319 SSLV319 - Plane propagation of a semi-elliptical crack

Summary:

The purpose of this test is to validate the plane propagation of a crack by observing the displacement of the crack bottom during propagation.

This test involves a pavement with a flat semi-elliptical opening crack, subjected to a tensile force.

The crack is represented by the X- FEM method and the propagation simulated using the PROPA_FISS command.

We are going to compare the results to an experimental solution.

This test contains four models:

Modeling A uses the MAILLAGE method of the PROPA_FISS operator.

B modeling uses the GEOMETRIQUE method of the PROPA_FISS operator.

C modeling uses the GEOMETRIQUE method of the PROPA_FISS operator, with cohesive elements. Operation DETECT_COHESIF is used to determine the advance of the front.

The 3D modeling uses the SIMPLEXEde method the PROPA_FISS operator.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. The Paris-type fatigue propagation law resulting from the tests is as follows:
  • 2.4. Bibliographical references
• 3. Modeling A: Method MAILLAGE
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Boundary conditions and loads
  • 3.4. Tested sizes and results
• 4. Modeling B: Method GEOMETRIQUE
  • 4.1. Characteristics of modeling
  • 4.2. Tested sizes and results
• 5. C modeling: validating DETECT_COHESIF
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
• 6. 3D modeling: Method SIMPLEXE
  • 6.1. Characteristics of modeling
  • 6.2. Tested sizes and results
• 7. Summary of results