Opportunities for using the thermal imaging method of nondestructive inspection for diagnosis of skin delamination in honeycomb structures used in modern aircrafts
N.I. Klochkov1,2, I.D. Zverkov1,3, D.A. Gavrilov4,5
1Novosibirsk State Technical University, Novosibirsk, Russia
2“Aeroflot Technics” Plc, Moscow, Russia
3Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
4Novosibirsk State University, Novosibirsk, Russia
5Informatics College at the NSU, Novosibirsk, Russia
Keywords: composite honeycomb constructions, thermal imaging method for nondestructive inspection, delamination of skin, equipment for nondestructive inspection
Abstract
The modern aviation industry has many applications for honeycomb composite panels (HCP). The HCP-manufactured product line becomes more extended. This dictates a need for most effective and inexpensive methods for nondestructive inspection for HCP integrity that can ensure a high level of flight safety. One of promising methods for nondestructive inspection is the thermal technique. This paper presents and analyses the method feasibility of revealing the delamination of outer skin from an HCP filling. This task is performed by numerical simulation and the paper presents a pictorial test with a sample of HCP typical for aircraft engineering. Our results demonstrate how the thermal imaging tools can be used for the fact of skin delamination with account for technical restrictions found in real experiments with a physical sample of HCP.
|
