Method improvement of EMAT signals simulation and its applications in TBC inspection

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Pei, Cuixiang^a | Chen, Zhenmao^{a; *} | Wu, Wenjing^a | Mao, Ying^a

Affiliations: [a] MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China

Correspondence: [*] Corresponding author. Tel.: +86 29 82668736; Fax: +86 29 82668736; E-mail: chenzm@mail.xjtu.edu.cn

Abstract: In this paper, a code of finite element method is developed for numerical simulation of electromagnetic acoustic testing (EMAT) signals. In order to improve the simulation efficiency of ultrasonic field, a new explicit integration algorithm of time domain is introduced in the simulation code. As an extending application of EMAT to the quality control of Thermal Barrier Coating (TBC), the feasibility of an EMAT transducer, which is proposed for detecting delaminating defect in TBC, is investigated by using the new code.

Keywords: EMAT, nondestructive testing, finite element method, thermal barrier coating, numerical simulation method

DOI: 10.3233/JAE-2010-1223

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1077-1085, 2010