v3.05.101 SSLX101 - Straight pipe modelled in shells and beams

Summary:

The purpose of this test is to validate the shell-beam connection. The pipe is embedded at one end, and subjected to 4 successive forces (traction and 3 moments) on the other end. One half of the pipe is meshed into shells, the other is meshed into beams. The embedment and the connection between the shell part and the beam are achieved by a shell-beam connection, making it possible in particular to transmit only the torsor of beam-type forces to the shell, without generating parasitic stresses.

The reference solution is analytical (material resistance). The difference with the numerical solution (from 3 to 5%) is explained by the fact that the shell mesh actually consists of plane elements (facets). The geometry of the pipe is therefore itself approximated. The solution obtained makes it possible to verify that the connection between the shell elements and the beam element is correct.

• 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
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested values
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested values
• 5. Summary of results