New Possibilities of Simulation Tools for NDT and Applications
Simulation tools gathered in the CIVA platform dedicated to the modeling of NDT techniques are now extensively used in different industrial sectors. T hi software platform is developed by CEA LIST but also benefits from the contribution of numerous partners from industry and universities which allows ca pitalizing new developments for the modeling of various NDT techniques in a single environm ent. Initially based on pure semi analytical models and thanks to collaboration with other laboratories, the current trend is to merge numerical models to semi analytical ones in order to benefit from both approach: numerical efficiency and versatility. In this frame, the UT module of CIVA is now integrating several Finite Elemen ts models to account for more complex phenomena in the wave/flaw interactions as well as a Finite Difference model to simulate more realistic composite parts inspections. The Ed dy Current module also integrates numerical tools to give the user the ability to si mulate more complex part geometries (CAD shape) or probes (with complex fer rite shapes for instance) Among other new possibilities, the Guided Waves module now introduces the simulation of flaw responses in rail tracks. Used during the design stage of a new component or for the performance demonstration of an in service inspection method, the simulation tool supports productivity improvem ent, for instance by reducing the number of necessary mock ups and exp erimental trials since it helps to understand what are the influential parameters of an inspection. It also helps to introduce innovative processes such as multi elements methods. This article introduces some applications of modeling in NDT as well as some of the latest developments now available in CIVA.