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基于太赫兹图像的航天复合材料粘接缺陷检测方法研究

Translated title of the contribution: Study on Nondestructive Testing for Bonding Defects in Aerospace Composite Based on Terahertz Image
  • Zhao Pan
  • , Yin Tang Wen
  • , Xiao Kang Zheng
  • , Yao Yao Cui
  • Yanshan University
  • Tianjin Aviation Electro-Mechanical Co. Ltd.

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Thermal insulation aerospace composite and metal substrates' bonding defects are tested by the reflection type frequency modulated continuous terahertz wave testing system which the frequency range is 0.23~0.32THz. Thermal insulation composite and metal substrates are bonded by epoxy resin adhesive as the experimental sample. Bonding defects of the adhesive interface can be detected visualized by image neighbor focal plane. Fuzzy c-means (FCM) clustering algorithm is applied to get the segment of defect binary images combined with median filtering, then have the defect area by calculating the number of pixels. Compared with the samples which have known defect area, the error is not more than ±9%.

Translated title of the contributionStudy on Nondestructive Testing for Bonding Defects in Aerospace Composite Based on Terahertz Image
Original languageChinese (Traditional)
Pages (from-to)471-475
Number of pages5
JournalJiliang Xuebao/Acta Metrologica Sinica
Volume39
Issue number4
DOIs
StatePublished - 22 Jul 2018
Externally publishedYes

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