Characterization of impact damage in woven fiber composites using fiber bragg grating sensing and NDE

Cristobal Hiche, Kuang C. Liu, Mark Seaver, Jun Wei, Aditi Chattopadhyay

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

8 Scopus citations

Abstract

Woven fiber composites are currently being investigated due to their advantages over other materials, making them suitable for low weight, high stiffness, and high interlaminar fracture toughness applications such as missiles, body armor, satellites, and many other aerospace applications. Damage characterization of woven fabrics is a complex task due to their tendency to exhibit different failure modes based on the weave configuration, orientation, ply stacking and other variables. A multiscale model is necessary to accurately predict progressive damage. The present research is an experimental study on damage characterization of three different woven fiber laminates under low energy impact using Fiber Bragg Grating (FBG) sensors and flash thermography. A correlation between the measured strain from FBG sensors and the damaged area obtained from flash thermography imaging has been developed. It was observed that the peak strain in the fabrics were strongly dependent on the weave geometry and decreased at different rates as damage area increased due to dissimilar failure modes. Experimental observations were validated with the development of a multiscale model. A FBG sensor placement model was developed which showed that FBG sensor location and orientation plays a key role in the sensing capabilities of strain on the samples.

Original languageEnglish (US)
Title of host publicationNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009
DOIs
StatePublished - Jun 15 2009
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009 - San Diego, CA, United States
Duration: Mar 9 2009Mar 11 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7294
ISSN (Print)0277-786X

Other

OtherNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009
CountryUnited States
CitySan Diego, CA
Period3/9/093/11/09

Keywords

  • Damage area
  • Damage characterization
  • FBG sensing
  • Flash thermography
  • Woven fiber composite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Hiche, C., Liu, K. C., Seaver, M., Wei, J., & Chattopadhyay, A. (2009). Characterization of impact damage in woven fiber composites using fiber bragg grating sensing and NDE. In Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009 [72940E] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7294). https://doi.org/10.1117/12.815811