Numerical simulation of ultrasonic non-destructive testing of materials

Introduction to numerical simulation for optimizing non-destructive testing of materials. Practice on CIVA software (CEA - http://www.extende.com/fr/) then on Comsol Multiphysics (https://www.comsol.fr) to simulate the generation, propagation and detection of ultrasonic waves, as well as their interaction with material defects. Applications to the inspection of structures using ultrasonic techniques.
Introduction to numerical simulation for the optimization of non-destructive testing of materials. Practice on CIVA software (CEA - http://www.extende.com/fr/) and then on Comsol Multiphysics (https://www.comsol.fr) to simulate the generation, propagation and detection of ultrasonic waves, as well as their interaction with defects in materials. Applications to ultrasound-based inspection techniques.

Dynamic elasticity, materials, notions of wave propagation (frequency, wavelength, speed, attenuation, beam, etc.) or vibrations (frequency, eigenmodes).

Ultrasonic NDT simulation with CIVA
◦ Industrial context, problems and NDT requirements
◦ Need for numerical simulation
◦ General notions of ultrasonic wave propagation
◦ Different modeling approaches (numerical, analytical, semi-analytical)
◦ Application examples
◦ General presentation and use of CIVA software
◦ Practical work session with CIVA software: field calculation, inspection simulation, defect detection and localization, taking into account complex geometries and materials, multi-element techniques.

Ultrasonic NDT simulation with Comsol Multphysics
◦ Introduction - Generalities
◦ The mathematical model for ultrasonic wave propagation in an anisotropic material
◦ PDE (Partial Differential Equation) module or Structural Mechanics module
◦ Define geometry, mesh, model parameters, boundary conditions, ...
◦ Excitation and reception of a mechanical deformation field in the dynamic regime
◦ Diffraction of a wave by a material defect
◦ Analysis of simulated data
◦ Practical cases: volume waves, guided waves, detection and localization of a defect in a composite material.

Materials testing - Ultrasonics - Numerical simulation software