Quantitative NDE of welding defects in lattice sandwich metallic plate by using DC potential drop method

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

Article type: Research Article

Authors: Zhang, Dongli^a | Chen, Zhenmao^{a; *} | Xu, Minglong^a | Lu, Tian-Jian^a

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

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

Abstract: Lattice sandwich metallic plate (LSMP) is an important multifunctional material. The strength of LSMP may be significantly affected by defects in its welding joints. In this paper, Direct Current Potential Drop (DCPD) in addition with a sizing indicator is proposed as a quantitative NDE tool to evaluate the welding defects in LSMP. Simulation and experimental results show that the proposed strategy is efficient for the quantitative NDT of welding defects in LSMP.

Keywords: Quantitative NDE, lattice sandwich metallic plate, welding defect, DCPD, numerical simulation, experiment

DOI: 10.3233/JAE-2010-1227

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1109-1117, 2010