v1.01.336 ZZZZ336 — Validation of the consideration of command variables at the sub-points

Summary:

The objective of this test is to validate the consideration of command variables at the sub-points by providing the keyword AFFE_VARC of the AFFE_MATERIAU command with a field or result created by the SOUS_POINT method of the command PROJ_CHAMP.

The models considered are the elements DKT, GRILLE_EXCENTREE,, POU_D_EM, and POU_D_TGM.

For elements DKTet GRILLE_EXCENTREE, the verification consists in projecting a temperature field resulting from a 3D linear thermal calculation onto a slab composed of multi-layered DKT elements and an eccentric grid. The deflection of the slab due to the thermal gradient is calculated using linear thermoelasticity.

The reference solution is the result of an identical calculation with the CREA_RESUoption PREP_VARC method.

For models POU_D_EM and POU_D_TGM, validation is done in two stages. First of all, a mono-material beam supported by a temperature field varying along the Z axis is subjected to. The results are compared to the same problem modelled by 3D elements. The bi-material case is then treated, again on a supporting beam, by varying the temperature in such a way that, taking into account the different materials, the thermal deformation is the same on each fiber. No deflection should then be found.

This test also validates options EPVC_ELGA, EPME_ELGA, and EPSP_ELGA for the items listed above.

• 1. Reference problem: Shells and grills
  • 1.1. Geometry and meshes
  • 1.2. Material properties
  • 1.3. Boundary conditions and loading
• 2. Reference solution: Shells and grills
  • 2.1. Calculation method
  • 2.2. Reference quantities and results
  • 2.3. Uncertainties about the solution
• 3. Reference problem: Multi-fiber beams
  • 3.1. Geometry and meshes
  • 3.2. Material properties
  • 3.3. Boundary conditions and loading
• 4. Reference solution: Multifiber beams
  • 4.1. Single-material calculation
  • 4.2. First bi-material calculation
  • 4.3. Second bi-material calculation
• 5. Modeling A
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
• 6. B modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
• 7. C modeling
  • 7.1. Characteristics of modeling
  • 7.2. Characteristics of the mesh
  • 7.3. Tested sizes and results
• 8. Summary of results