v2.02.153 SDLL153 - Eigenmodes of a thin elastic pipe under different boundary conditions

Summary:

This test represents a calculation of the natural modes of a thin elastic cylindrical pipe under various boundary conditions.

It makes it possible to validate finite element modeling:

• COQUE_3D with TRIA7 and QUAD9 stitches.

• DKT with TRIA3 and QUAD4 stitches.

The natural modes obtained are compared to a numerical reference solution.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Benchmark solution
  • 2.1. Calculation method and reference results
  • 2.2. 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. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
  • 5.4. notes
• 6. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
  • 6.4. notes
• 7. Summary of results