v1.01.112 ZZZZ112 - Variable pressure cylinder. Validation of LIRE_PLEXUS

Summary:

The purpose of this test is to validate the operation of the LIRE_PLEXUS command. This makes it possible to read pressure fields calculated by PLEXUS on a wire mesh, and to apply these pressures to a mesh composed of shells or wire elements.

This test has an analytical solution: it is a cylinder subjected to a pressure that varies linearly along its axis.

Two models are proposed: the cylinder is meshed in elements DKT (modeling A) or in elements COQUE_3D (modeling B).

The results differ from the reference solution only by the lack of refinement of the shell mesh (especially for modeling A).

This test therefore validates command LIRE_PLEXUS.

• 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 the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested sizes and results
• 5. C modeling
  • 5.1. Characteristics of modeling
  • 5.2. Characteristics of the mesh
  • 5.3. Tested sizes and results
• 6. Summary of results