Modeling Some Calibrated Cracks for E-NDE by a Difference Method

被引：1

作者：

Bettaieb, L. ^{[1
]}

Kokabi, H. ^{[1
]}

Poloujadoff, M. ^{[1
]}

Coillot, C. ^{[2
]}

机构：

[1] Univ Paris 06, L2E, F-75252 Paris 05, France

[2] CETP, F-78140 Velizy Villacoublay, France

来源：

JOURNAL OF NONDESTRUCTIVE EVALUATION | 2011年 / 30卷 / 03期

关键词：

Magnetic field evaluation; Eddy currents; NDE; Calibrated cracks; Numerical analysis; Difference method; Hall probe; HALL-EFFECT SENSORS; NONDESTRUCTIVE EVALUATION; EDDY CURRENTS; SQUID;

D O I：

10.1007/s10921-011-0097-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electromagnetic Non Destructive Evaluation (E-NDE) is often conducted by inducing eddy currents in the structure to be examined, if this is conducting. Existence of flaws is detected by difference between the response of defect-free structures and damaged ones. In the present paper, we model such processes in order to predict the feasibility of this evaluation and to facilitate the interpretation of the observation. An original method is to represent a crack by a current source producing a magnetic signal. We have applied it to the case of a defect with a standard shape. The experimental evidences for the validity of this method are given.

引用

页码：117 / 121

页数：5

共 15 条

[1]

Bettaieb L, 2010, MATER EVAL, V68, P535

[2] Fatigue and/or crack detection in NDE [J].