Optimization of magnetoimpedance and stress-impedance effects in single-microwire polymer composites for stress monitoring

F. Qin*, H. X. Peng, V. V. Popov, M. H. Phan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

The influence of applied stress and the composite geometry on impedance properties of composites containing ferromagnetic microwires has been investigated. The results indicate that the application of tensile stress along the microwire axis and the increase of composite thickness decreased the magneto-impedance (MI) ratio. The stress induced impedance (SI) effect was enhanced with increasing composite thickness reflecting the role of the internal residual stresses. Theoretically calculated matrix-wire interfacial stress from the magneto-impedance profiles is in good agreement with the value of the applied effective tensile stress. This demonstrates a new route to probing the stress conditions of such composites.

Original languageEnglish
Title of host publicationBEHAVIOR AND MECHANICS OF MULTIFUNCTIONAL MATERIALS AND COMPOSITES 2011
EditorsZ Ounaies, SS Seelecke
Place of PublicationBELLINGHAM
PublisherSociety of Photo-Optical Instrumentation Engineers (SPIE)
Number of pages6
ISBN (Print)978-0-81948-540-3
DOIs
Publication statusPublished - 2011
EventConference on Behavior and Mechanics of Multifunctional Materials and Composites 2011 - San Diego, Canada
Duration: 7 Mar 20119 Mar 2011

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume7978
ISSN (Print)0277-786X

Conference

ConferenceConference on Behavior and Mechanics of Multifunctional Materials and Composites 2011
CountryCanada
CitySan Diego
Period7/03/119/03/11

Keywords

  • stress-impedance
  • ferromagnetic microwires
  • AMORPHOUS WIRES
  • MAGNETOSTRICTION
  • magnetoimpedance
  • Multifunctional composite

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