The large strain testing of piles (PDA) is a dynamic problem under a very high strain rate compared to the service strain rate of the piles. This dynamic problem mobilizes significant inertial forces, as well as forces related with the rheology of the materials involved, particularly the soil pile interaction and the viscous nature of the soil itself. Chaure, 2004, has done a detailed review of how the load rates effects are considered on the behavior of piles under large strain dynamic loading. It shows how this effect is usually taken into