A new smart damage sensor using mechanoluminescence material

Wen Xue Wang, Yusuke Imai, C. N. Xu, T. Matsubara, Y. Takao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)

Abstract

This paper proposes a new smart sensor for the detection of damage in structures using mechanoluminescence (ML) material SrAl2O4:Eu (SAOE). SAOE is a kind of functional ceramics that can emit visual light when it is subjected to external mechanical action. The luminescence of SAOE is very high so that it enables us to view the visual light with naked eye. A smart film sensor is fabricated using SAOE powder and polymer. The effect of load frequency on the emitted visual light is investigated under cyclic loading conditions. Furthermore, detection of a crack and evaluation of the stress concentration and stress intensity factors are performed using SAOE film sensor. Experimental results demonstrate that the visual light emitted by SAOE film sensor has good correlation with the equivalent strain and stress.

Original languageEnglish
Title of host publicationAdvanced Material Science and Technology
PublisherTrans Tech Publications Ltd
Pages1081-1084
Number of pages4
ISBN (Print)9783037850497
DOIs
Publication statusPublished - 2011

Publication series

NameMaterials Science Forum
Volume675 677
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

All Science Journal Classification (ASJC) codes

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

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