Plaxis Dynamics is an add- on for Plaxis 2D v9 Soil and structures are often subjected not only to static loads due to constructions in and on the ground surface but also to dynamic loads. If the loads are powerful, as in earthqueakes, they may cause severe damages.

Plaxis Dynamics analyses module you can analyse the effects of vibrations in the soil. Even though vibrations often have 3D-characteristics, in Plaxis 2D v9, the dynamic model is limited to plain strain and axisymmetric conditions.

Dynamics is equipped with features to deal with aspects of dynamics loads.
A brief summary of important features of the program  can be found on the Features page.