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 prese...

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Bibliographic Details
Published in:Russian journal of nondestructive testing 2019-06, Vol.55 (6), p.434-442
Main Authors: Potapov, A. I., Kondrat’ev, A. V., Smorodinskii, Ya. G.
Format: Article
Language:English
Subjects:
Acoustic Methods
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Elastic waves
Flaw detection
Gaging
Hodographs
Materials Science
Mechanical properties
Nondestructive testing
Structural Materials
Thickness
Wave propagation
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Summary: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.
ISSN:1061-8309
1608-3385
DOI:10.1134/S106183091906007X