Open AccessIdentification and Assessment of Zones with Interfacial Partially Healed Cracks Using Lamb Waves Dispersion
Author(s) -
Aleksandr Dudchenko
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1079/4/042059
Subject(s) - mortar , materials science , durability , cementitious , stiffness , composite material , self healing , ultrasonic sensor , structural engineering , cement , acoustics , engineering , medicine , alternative medicine , physics , pathology
Requirements of modern technics and technology resulted in development of composite materials that provides higher target properties than individual materials. Then, self-healing technology was proposed to increase the durability of such materials. This technology can be applied to various material types, for instance to cementitious one like concrete and mortar as well as multilayer laminar composites. In the both cases one of the most important issue is to estimate the degree of healing as well as the change in the material mechanical and physical properties like strength, stiffness, permeability, etc. during healing process. Various methods are possible to implement for such assessment including non-destructive ways of evaluation. In the present work ultrasonic diagnostics involving Lamb waves is considered and evaluated to show its applicability for practical testing of multilayer composites. The method is based on Six-dimensional Cauchy formalism developed earlier.