v6.03.119 FORMA20 - Mechanical adaptive mesh on a flexure beam

Summary:

In this test case, it is a question of ensuring the non-regression of TP 1 associated with the courses « Error indicators and mesh adaptation; State of the art and implementation in Code_Aster » of the « Nonlinear static analysis with Code_Aster »* course of the « Nonlinear static analysis with Code_Aster » course.

In fact, we distort a elastic calculation on a bending metal beam in plane stress modeling. It is converged uniformly via the refinement-deraffing tool HOMARD encapsulated in MACR_ADAP_MAIL, then freely by coupling the process to a spatial error map located on each finite element.

From the point of view of computer validation, this test case makes it possible of course to test the non-regression of various coupling error map calculations/refinement-deraffing procedure in mechanics, but also the « pre and post-processing » options for these calculations (smoothing the constraints at the nodes, transition from an error at the nodes to an error at the nodes by element).

Each modeling is associated with a TP question and we transcribed most of the correction elements. The full text of the TP is available on the website http://www.code-aster.com/utilisation/formations.

• 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 reference solutions
  • 2.2. Benchmark result
  • 2.3. Uncertainty about solutions
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
  • 3.4. What to remember from this part of the TP…
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
  • 4.4. What to remember from this part of the TP…
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
  • 5.4. What to remember from this part of the TP…
• 6. Summary of results