v3.01.103 SSLL103 - Elastic buckling of an angle iron

Summary:

A biarticulated straight beam (angle with equal wings) is subjected to a normal force (eccentric or not) or to a bending moment.

We are looking for the critical loads of elastic buckling.

• linear elastic mechanics,

• buckling of a beam,

• eccentricity of the center of torsion,

• interest of the test: calculation of the geometric rigidity matrix of elements POU_D_TG and POU_D_T,

• 2 models.

Uncertainty persists on the number of buckling modes of the reference solution [§5].

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. notes
• 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
  • 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. Summary of results