Active Thermal Testing of Delaminations in Heat-Shielding Structures

Abstract

We describe possibilities offered by active thermal testing when detecting delaminations of heat-shielding coatings from a metal base using an optical thermal-stimulation source that implements heating in a scanning mode. Results of numerical simulation of thermal processes are given for various defective situations. The thermophysical characteristics of heat-shielding materials have been experimentally determined, and the limits of the thermal method have been estimated for heat-shielding thickness and defect size.

Original language	English
Pages (from-to)	240-247
Number of pages	8
Journal	Russian Journal of Nondestructive Testing
Volume	55
Issue number	3
DOIs	https://doi.org/10.1134/S1061830919030033
Publication status	Published - 1 Mar 2019

Keywords

active thermal testing
defect
delamination
heat-shielding coating
optical heating

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1134/S1061830919030033

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title = "Active Thermal Testing of Delaminations in Heat-Shielding Structures",

abstract = "We describe possibilities offered by active thermal testing when detecting delaminations of heat-shielding coatings from a metal base using an optical thermal-stimulation source that implements heating in a scanning mode. Results of numerical simulation of thermal processes are given for various defective situations. The thermophysical characteristics of heat-shielding materials have been experimentally determined, and the limits of the thermal method have been estimated for heat-shielding thickness and defect size.",

keywords = "active thermal testing, defect, delamination, heat-shielding coating, optical heating",

author = "Chulkov, {A. O.} and Vavilov, {V. P.} and Moskovchenko, {A. I.}",

year = "2019",

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language = "English",

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AU - Vavilov, V. P.

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N2 - We describe possibilities offered by active thermal testing when detecting delaminations of heat-shielding coatings from a metal base using an optical thermal-stimulation source that implements heating in a scanning mode. Results of numerical simulation of thermal processes are given for various defective situations. The thermophysical characteristics of heat-shielding materials have been experimentally determined, and the limits of the thermal method have been estimated for heat-shielding thickness and defect size.

AB - We describe possibilities offered by active thermal testing when detecting delaminations of heat-shielding coatings from a metal base using an optical thermal-stimulation source that implements heating in a scanning mode. Results of numerical simulation of thermal processes are given for various defective situations. The thermophysical characteristics of heat-shielding materials have been experimentally determined, and the limits of the thermal method have been estimated for heat-shielding thickness and defect size.

KW - active thermal testing

KW - defect

KW - delamination

KW - heat-shielding coating

KW - optical heating

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