Open AccessFeatures of ultrasonic non-destructive testing models of rectangular anisotropic elastic waveguides with a membrane coating
Author(s) -
S. V. Storozhev,
В. Е. Болнокин,
V. G. Vyskub,
Duong Minh Hai,
D. I. Mutin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1679/4/042039
Subject(s) - ultrasonic sensor , anisotropy , waveguide , generalization , nondestructive testing , optics , phase (matter) , mathematical analysis , materials science , mathematics , acoustics , physics , quantum mechanics
A numerical-analytical fuzzy-set method for synthesizing estimates of the influence of uncertainty factors in the form of scatter of the initial physical-mechanical and geometric parameters of a long waveguide of prismatic geometry from anisotropic single-crystal material of a cubic system on the phase velocities of traveling normal elastic waves for applying in ultrasonic nondestructive evaluation are presented. Waveguide has absolutely flexible inextensible thin coatings of a faces. The technique is based on the description of parameters with scatter errors in the form of fuzzy-intervals quantities and on the transition to fuzzy-set arguments in the analytical representations of wave numbers for various branches of the dispersion spectrum. The alpha-level form of the heuristic generalization principle is used. Examples of a fuzzy-set description of a series of frequency distributions characteristics of phase velocities of traveling normal waves for a waveguide from a silicon single crystal are given.