2. Benchmark solution

2.1. Calculation method used for the reference solution

As a reference solution, we take the post-buckling response obtained with modeling POU_D_T_GD (modeling A), which will provide non-regression values.

2.2. Benchmark results

Non-regression tests on some points of the force-displacement curves representative of the behavior of the structure (Force applied to point \(C\) as a function of the displacement of the point \(C\) following \(X\) and \(Z\)).

2.3. Uncertainty about the solution

Other Aster modeling.

2.4. Bibliographical references

1. 7. DEVESA: Treatment of large displacements in the 7ddl angle element implanted in the Code_Aster validated by a classical test case (HM‑77/94/079).

1. 8. Shakourzadeh. Modeling of three-dimensional thin-walled beam structures and simulation of nonlinear geometric and elastoplastic behavior. Doctoral thesis, University of Compiègne, Compiègne (1994).