Big trips ==================== Large displacement processing is available for straight beams in *Code_Aster*. It is activated by the keyword DEFORMATION =' GROT_GDEP '. This option allows you to take into account the updating of the geometry at each iteration. At each iteration the geometric rigidity matrix is updated, chapter :ref:`6 `, and is added to the tangent matrix. This allows for better convergence of calculations as explained in [:external:ref:`R3.08.09 `]. .. _RefNumPara__33431739: