Performance Assessment of Induction Thermography Technique Applied to Carbon-Fiber-Reinforced Polymer Material

Author

Huu Kien Bui ; Wasselynck, Guillaume ; Trichet, Didier ; Berthiau, Gerard

Author_Institution

Inst. de Rech. en Energie Electr. de Nantes Atlantique, Univ. of Nantes, St. Nazaire, France

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

In this paper, a model is built to evaluate the flaw detection capacity of the induction thermography applied to nondestructive testing (NDT) of carbon-fiber-reinforced polymer composite. A homogenization approach is used to overcome the large-scale factor. The homogenized electric conductivity obtained is used in a 3-D multilayer finite element model. The problem is discretized by hexahedral element to deal with the numeric instability of tetrahedron element in the modeling of thin and strongly anisotropic domain. The distribution of current in the induction coil is also considered to improve the accuracy of the solution. Numerical model is then validated by comparison with measurement. Simulation of an NDT case with induction thermography will be discussed.

Keywords

carbon fibre reinforced plastics; current distribution; eddy current testing; electrical conductivity; finite element analysis; infrared imaging; large-scale systems; multilayers; nondestructive testing; 3D multilayer finite element model; NDT; carbon-fiber-reinforced polymer material; current distribution; flaw detection capacity; hexahedral element; homogenization approach; homogenized electric conductivity; induction coil; induction thermography technique; large-scale factor; nondestructive testing; numerical model; performance assessment; strongly anisotropic domain; tetrahedron element; Conductivity; Delamination; Electric potential; Electromagnetics; Inductors; Numerical models; Tensile stress; Composite materials; finite element analysis; nondestructive testing (NDT);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2363079

Filename

7093393