Composite materials have many advantages such as big specific strength, high specific stiffness, good disrepair safety characteristic, large area molding conveniently and easy to forming complex shape. It becomes important structural materials of aero aircraft equipment necessarily and is used widely in aviation industry. Composite materials components of aero aircraft with complex and delicate structure chronically work in harsh environment. Early testing of its key component’s minute defects has been an urgent and necessary task. In this paper, its damage model and characteristic are analyzed and studied. Considering the limitation of composite materials structure’s detection methods at present, a number of existing problems are presented and development directions are pointed out. Laser ultrasound detection technique, continuous distribution sensing technique and optical fiber sensing technique are studied. The method of damage detection of aero aircraft’s composite materials components is put forward based on the organic combination of the three techniques. The results show that the system can be used to detect multi-ultrasound signals of large composite materials structure. Its structure is simple. It has small bulk and low cost. It is characterized by easy realization.
New Technology Research of Nondestructive Testing for Aero Aircraft Composite Materials
ICMSSEM, International Conference on Mechanics, Solid State and Engineering Materials, 2011 ; 142-146
2011
5 Seiten
Conference paper
English
Air force research laboratory program for nondestructive testing of composite materials
Tema Archive | 1998
|Pulsed Holographic Nondestructive Testing On Aircraft
SPIE | 1983
|