Non-destructive testing of low-energy impact in CFRP laminates and interior defects in honeycomb sandwich using scanning pulsed eddy current

被引：122

作者：

He, Yunze ^{[1
,2
]}

Tian, GuiYun ^{[2
]}

Pan, Mengchun ^{[1
]}

Chen, Dixiang ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Mech Engn & Automat, Changsha 410073, Hunan, Peoples R China

[2] Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

COMPOSITES PART B-ENGINEERING | 2014年 / 59卷

基金：

英国工程与自然科学研究理事会;

关键词：

Carbon fibres; Delamination; Impact behaviour; Non-destructive testing; COMPOSITES; NDE; AIRCRAFT; DAMAGE;

D O I：

10.1016/j.compositesb.2013.12.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

With the growing interest to use composite materials and honeycomb sandwich panels in industrial fields, much attention is devoted to the development of non-destructive testing (NDT) techniques for the detection and evaluation of defects. In this work, scanning pulsed eddy current (PEC) was investigated and two features, representing the magnetic field intensity and conductivity, were used to characterise the different types of defects in carbon fibre reinforced plastics (CFRP) laminates and honeycomb sandwich panels. The experimental results show that the low energy impact from 4 J to 12 J, conductive and non-conductive insert defects can be effectively detected and evaluated using the proposed methods. The effectiveness was verified and the advantages of scanning PEC were addressed through comparative studies with flash thermography and shearography. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：196 / 203

页数：8

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