v6.03.120 FORMA21 - Thermo-mechanical adaptive mesh on a cracked cylinder head

Summary:

A thermo-elastic calculation is carried out on a cracked metal yoke using plane stress modeling (for the mechanical part) and lumped stress modeling (for the thermal part). In accordance with « good practices » for the quality of studies, two distinct meshes are used: linear in thermal and quadratic in mechanics.

First of all, the thermal calculation is carried out (modeling A) on which the \({P}_{1}\) mesh is freely converged with a spatial error indicator map (CALC_ERREUR + “ERTH_ELEM”) /refinement-deraffination (MACR_ADAP_MAIL + “RAFF_DERA”) map coupling.

In the second modeling (B), the two meshes are adapted jointly according to the same process during a chained thermo-mechanical calculation. For the free adaptation of the mechanical mesh, use is made of the pure residue indicator “ERME_ELEM”.

This test case makes it possible to test the non-regression of various coupling error map calculations/refinement-deraffination procedures in thermo-mechanics, and the « pre and post-processing » options for these calculations.

• 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. notes
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
  • 4.4. notes
• 5. Summary of results