Determination of Young modulus by using Rayleigh waves

• Published in: Applied Mathematical Modelling Vol. 77; pp. 439 - 455
• Main Authors: Cao-Rial, M.T., Moreno, C., Quintela, P.
• Format: Journal Article
• Language: English
• Published: New York Elsevier Inc 01.01.2020; Elsevier BV
• Subjects: Computer simulation; Destructive testing; Finite element method; Material properties; Modulus of elasticity; Non-destructive testing; Nondestructive testing; Optimization; Phase velocity; Physical properties; Rayleigh waves; Traveling waves; Wave propagation; Young modulus; Finite element method; Young modulus; Non-destructive testing; Rayleigh waves; Material properties
• ISSN: 0307-904X; 1088-8691; 0307-904X
• DOI: 10.1016/j.apm.2019.07.051

•A mathematical model for a Rayleigh wave packet is developed.•Experimental data are analyzed to compute the input data for the numerical model.•A FEM is implemented to numerically replicate the experimental results.•An optimization procedure to obtain the Young modulus of the material is provided.•The results of the numerical simulations are presented. The aim of this work is to provide a non-destructive testing technique to obtain the physical properties of a given material, based on a series of images, obtained through a non-invasive procedure, that capture the experimental propagation of a Rayleigh waves packet travelling through it, and allowing us to obtain the phase velocity of the waves packet. The proposed procedure involves a minimization technique that requires the numerical simulation of the travelling waves to obtain the optimal material parameters. Numerical results are compared with experimental data to validate the procedure.