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Investigation of compressive damage mechanisms in 3D braided composites by the acoustic emission events energy and amplitude

  • Shi Yan*
  • , Shi Dong Pan
  • , Dong Hua Li
  • , Ji Cai Feng
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Harbin University of Science and Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The deformation behavior and damage mechanism of 3-D carbon/epoxy braided composites with different braiding angles under the monotonic compressive loading are investigated by the acoustic emission (AE) technique. The damage process is divided into several different regions based on the change of the accumulative AE event counts. Correlations between the damage mechanisms and the AE results are established in terms of the events energy and amplitude. These correlations can be used to monitor the fracture growth process in the braided composites. Experimental results reveal that the AE technique is an effective tool for identifying damage mechanisms.

Original languageEnglish
Title of host publicationMechanical Engineering, Materials Science and Civil Engineering
Pages393-397
Number of pages5
DOIs
StatePublished - 2013
Event2012 International Conference on Mechanical Engineering, Materials Science and Civil Engineering, ICMEMSCE 2012 - Harbin, China
Duration: 18 Aug 201220 Aug 2012

Publication series

NameApplied Mechanics and Materials
Volume274
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 International Conference on Mechanical Engineering, Materials Science and Civil Engineering, ICMEMSCE 2012
Country/TerritoryChina
CityHarbin
Period18/08/1220/08/12

Keywords

  • Acoustic emission
  • Composites
  • Deformation
  • Fracture

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