Features of utilization of acoustic methods in quality inspection of layered materials

摘要

The problems of acoustic nondestructive inspection of layered materials are formulated. Some characteristic features of elastic waves propagation within such materials are considered. Acoustical models of the layered materials are proposed.Physical mechanisms variation of elastic waves parameters caused by the variation of adherence are analyzed. The experimental data on quality inspection of coupling of chromium coastings with the grey iron and of elements sintering of anisotropicporousmaterials from aluminium foil are demonstrated.