v3.01.105 SSLL105 - Elastic buckling of an L-structure

Summary:

A structure in the shape of a \(L\) composed of two slender beams of thin rectangular cross section is subjected to force at one end, and is embedded at the other end. We are looking for the critical loads of elastic buckling associated with the positive and negative values of the force. The area of the test is:

• Linear elastic mechanics,

• Buckling of beams and shells,

• The first 3 models relate to (POU_D_E, POU_D_T, POU_D_TG).

• The 4th (POU_D_E) and the 5th (POU_D_TGM) models test the buckling criterion in the nonlinear static operator.

• The 5th (COQUE_3D: QUAD9) and the 6th (COQUE_3D: TRIA7) models test the buckling criterion in the nonlinear statics operator.

• The 7th (DKT: QUAD4) and the 8th (DKT: TRIA3) models test the buckling criterion in the nonlinear static operator.

• 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. D modeling
  • 6.1. Characteristics of modeling
  • 6.2. Characteristics of the mesh
  • 6.3. Tested sizes and results
• 7. E modeling
  • 7.1. Characteristics of modeling
  • 7.2. Characteristics of the mesh
  • 7.3. Characteristics of the cross-section mesh (fibers)
  • 7.4. Tested sizes and results
• 8. F modeling
  • 8.1. Characteristics of modeling
  • 8.2. Characteristics of the mesh
  • 8.3. Tested sizes and results
• 9. G modeling
  • 9.1. Characteristics of modeling
  • 9.2. Characteristics of the mesh
  • 9.3. Tested sizes and results
• 10. H modeling
  • 10.1. Characteristics of modeling
  • 10.2. Characteristics of the mesh
  • 10.3. Tested sizes and results
• 11. Modeling I
  • 11.1. Characteristics of modeling
  • 11.2. Characteristics of the mesh
  • 11.3. Tested sizes and results
• 12. Summary of results