Nondestructive Testing of Structurally Inhomogeneous Composite Materials by the Method of Elastic Wave Velocity Hodograph
We consider theoretical foundations for the nondestructive testing of large sized structures and structures made of structurally inhomogeneous composite materials by the method of elastic wave velocity hodograph. The theoretical fundamentals of the method of elastic wave velocity hodograph are presented for a single layer medium, and the propagation of low frequency elastic waves in a homogeneous isotropic single layer medium is described. Based on the research, recommendations are given on detecting defects and determining the speed of propagation of elastic waves in a single layer medium; this allows nondestructive testing of the physical and mechanical characteristics of the material in the layer and flaw detection and thickness gaging in large sized structures and structures made of coarse grained and composite materials.
Russian Journal of Nondestructive Testing