Benchmark solution
=====================

Calculation method used for the reference solution
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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.


Benchmark results
----------------------

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


Uncertainty about the solution
---------------------------

Other Aster modeling.


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