Logo
  • Albert Manero wins Fulbright Fellowship to conduct doctoral research at DLR in Cologne, Germany

  •  

     

     

     

     

    Gregory Freihofer wins 2nd place at the SAMPE CAMX student paper competition

  • Ashley and Greg performed summer research at Boeing Seattle

  •                                                                                                                                         

     

     

     

    Dr. Raghavan is named

       Educator of the Year

    by Women in Aerospace

  •  

     

     

     

     

    Stephen and Greg Spend Summer at Boeing Seattle as part of NSF GOALI Research

Previous Next
  • Home
  • Research
    • Highlights
    • Publications
    • Laboratory
    • Posters
  • People
    • Dr. Seetha Raghavan
    • Post Doctoral Researchers
    • Graduate Students
    • Undergraduate Students
    • Visiting Students
    • Alumni
  • Teaching
  • News
  • Student Spotlight
    • Awards and Fellowships
    • Field Research Teams
  • Launch Yourself!
    • Graduates
    • Undergraduates
    • Pre-College
  • IRES
    • About IRES
    • IRES Students
    • Blog
    • IRES Publications
  • Events

Stress and structural damage sensing piezospectroscopic coatings validated with digital image correlation

  • April 4, 2015
  • Seetha Raghavan
  • · Highlights
Album Artwork
PreviousPlayPauseNext

Loading audio…

Please wait while the audio tracks are being loaded.

No Audio Available

It appears there are not any audio playlists available to play.

Bad URL

The track url currently being played either does not exist or is not linked correctly.

Update Required To Play Media

Update your browser to a recent version or update your Flash plugin.

Tracks

The piezospectroscopic effect, relating a material’s stress state and spectral signature, has recently demonstrated tailorable sensitivity when the photo-luminescent alpha alumina is distributed in nanoparticulate form within a matrix. Here, the stress- sensing behavior of an alumina-epoxy nanoparticle coating, applied to a compos- ite substrate in an open hole tension configuration, is validated with the biaxial strain field concurrently determined through digital image correlation. The coating achieved early detection of composite failure initiation at 77% failure load, and subsequently tracked stress distribution in the immediate vicinity of the crack as it progressed, demonstrating non-invasive stress and damage detection with multi-scale spatial resolution.

« Prev Next »
  • Tweet

2022 Website maintained by Raghavan Research Group

Designed by Luke McDonald & Powered by WordPress