Paper Title:
Evaluation of Eddy Current Inspection on the Defects of Unloading vs. Loading Conditions in the Fiber Reinforced Composite Materials
  Abstract

It had been impossible to inspect the Eddy Current (EC) since the Fiber Reinforced Composite Materials (FRCM) had the low electric conductivity of resin layer. However, it has been successful for our previous research to inspect the defect using the EC. In the case of loading to FRCM, the researches of relationship between the failure behavior and the variation of EC signals have not been carried out. Therefore, this research focused on the comparison and the evaluation of the EC signals according to the variation of the defect depth using the unloading and the radial-loading FRCM tube. We obtained results are as follow. Firstly, The EC signals similar to that of the unloading specimens could be obtained from the loading specimen of 80% defect. Secondly, Regardless of the unloading and the loading specimens, the defect of 100% and 80% depths had the similar phase angles and Lissajous figures. Finally, it was guessed that the length of micro-cracks distributed at the whole specimens under the loading was less than 60% of the specimen thickness.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
1063-1066
DOI
10.4028/www.scientific.net/MSF.475-479.1063
Citation
C. W. Kim, J. S. Lee, T. G. Um, D. J. Oh, I. Song, "Evaluation of Eddy Current Inspection on the Defects of Unloading vs. Loading Conditions in the Fiber Reinforced Composite Materials", Materials Science Forum, Vols. 475-479, pp. 1063-1066, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kyung Ha Ryu, Na Young Lee, Il Soon Hwang
Abstract:Flow Accelerated Corrosion (FAC) has become a hot issue because of aging of passive components. Ultrasonic Technique (UT) has been adopted...
1331
Authors: J.H. Seo, Il Soo Kim, B.Y. Kang, J.Y. Shim, J.W. Jeong, J. S. Kim
Abstract:Industries such as gas, oil, petrochemical, chemical, and electric power have generally employed for the operation and used to enlarge the...
373
Authors: R.C. Waugh, Janice M. Dulieu-Barton, S. Quinn
Abstract:The feasibility of using pulse phase thermography (PPT) to identify defects in adhesively bonded joints is assessed. Artificial defects...
369
Authors: Yin Fang Jiang, Zhen Ning Guo, Yong Qi Yan, Qin Huang
Chapter 3: Material Application, Green Chemistry, and Mining Engineering
Abstract:The difference between inside circumferential defects and outside circumferential defects was proved using the theory of reflection waves,...
411
Authors: Huang Jian, Hwa Young Kim, Jung Hwan Ahn
Chapter 2: Sensors, Measurement and Detection
Abstract:In the present work, investigations by high frequency resonance technique for diagnosis of defect frequencies of linear motion unit are...
744