Studying Stability of CFRP Composites to Low-Energy Impact Damage by Laser Vibrometry

V. Yu Shpil’noi, V. P. Vavilov, D. A. Derusova, V. A. Krasnoveikin

Research output: Contribution to journalArticle

Abstract

Abstract: Nondestructive quality control of small-thickness composites is an important scientific and technical problem due to significant damage inflicted on materials even with minor impact loads. The stability of a 1-mm–thick CFRP composite to impact damage with an energy of up to 10 J has been investigated. Special attention has been paid to the analysis of the “visible” area of defects formed as a result of successive striking with increasing and decreasing energy in the range from 1 to 5 J. The area of defect indications was estimated by analyzing the images of vibrations at the surface of the composite produced by its acoustic stimulation and laser vibroscanning.

Original languageEnglish
Pages (from-to)639-647
Number of pages9
JournalRussian Journal of Nondestructive Testing
Volume55
Issue number9
DOIs
Publication statusPublished - 1 Sep 2019

Keywords

  • CFRP composite materials
  • impact damage
  • nondestructive testing
  • scanning laser vibrometry

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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