ECNDT 2014, SIMPOSIUM (FP7 project - simulations in NDT)
Simulation of Ultrasonic Testing of Composite Structures N. Dominguez128, F. Reverdy210 1 AIRBUS OPERATIONS SAS22, Toulouse, France 2LIST ; Commissariat Energie Atomique (CEA)287, Gif-Sur-Yvette, France Ultrasonic Testing (UT), Modeling and Simulation, aerospace, Composites, Simulation, Ultrasound
Inspection of composite structures requires careful preparation of inspection procedures. To do this, the help of simulation is of great interest in understanding ultrasonic wave behaviour, evaluating influent factors and optimizing NDT configurations. In this paper we present simulation tools for ultrasonic testing of composite materials integrated in CIVA. The software module implements a hybridation of CIVA semi-analytical computation in the coupling medium with a Finite-Differences in Time Domain computation in the composite material. This approach allows a fine description of the composite material meso-structure with associated complex ultrasonic phenomena due to heterogeneity and anisotropy, together with affordable calculation times. Typical composite flaws like delamination and ply waviness can be simulated in this software version. Validations against experimental data are presented and perspectives for future features are also presented.