PhD in Prediction of Elastic Wave Dispersion Effects Using Semi-Analytical Models

This PhD position at Université Paris-Saclay and CEA focuses on improving ultrasonic testing simulations for non-destructive inspection of critical industrial structures like nuclear welds and aerospace composites. The researcher will work on enhancing semi-analytical paraxial ray models by incorporating dispersive interfaces, viscoelastic media, and modal guided wave models. The objective is to create a robust simulation tool that accurately captures dispersion phenomena and realistic inspection setups. The candidate is expected to conduct rigorous numerical modeling, collaborate with research staff, and advance state-of-the-art wave propagation methods.

• Formulate and implement numerical models to predict elastic wave dispersion in complex media
• Enhance existing paraxial ray simulation approaches by integrating dispersive interfaces and viscoelastic media
• Develop modal guided wave models to improve the accuracy of ultrasonic inspection simulations
• Validate simulation tools against benchmark configurations and realistic industrial inspection scenarios
• Publish research findings in peer-reviewed journals and present results at international conferences