====== Quasi-static integration schemes ======

===== Description =====

In this case, inertial forces $F^{inert}$ are neglected. The equation $F^{int}=F^{ext}$ is then solved iteratively for each time test required.

===== Data set =====

=== Old Metafor Version <= 2422 ===

No commands are required, quasi-static integration is the default one. If the parameter ''MDE_NDYN'' is defined in the test case, its value must be 0.

=== New Metafor Version > 2422 ===

The quasi-static time integration procedure is the default one in Metafor. Even so, you can specify it in the dataset, as follows : 
<code>
ti = QuasiStaticTimeIntegration(metafor)
metafor.setTimeIntegration(ti)
</code>




===== Useful parameters =====

  * See [[doc:user:integration:general:time_step]]
  * [[doc:user:elements:volumes:volumeelement#parametres_des_elements_de_volume|Analytic/numerical stiffness matrix]]
  * [[doc:user:elements:volumes:elements_formulation#sous_integration_selective_avec_report_de_pression|Pressure report]]