v6.04.144 SSNV144 - Elbow flexed during large movements

Summary:

This test validates the modeling of shell flexure phenomena in large displacements in the elastic or elastoplastic domain: a pipe elbow, extended by straight pipes, is subjected to bending in its plane. The pipe is thick (of dimensions similar to the bends of the primary circuits). The reference solution is numerical: it is obtained with Code_Aster using a \(\mathrm{3D}\) elbow mesh.

The modeling is carried out with COQUE_3D elements in large displacements or in elastoplasticity.

• 1. Reference problem
  • 1.1. Material properties
  • 1.2. Boundary conditions and loads
  • 1.3. Initial conditions
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Quantities tested and results of modeling A
• 4. Summary of results