An Infrared Thermoelastic Stress Analysis Investigation for Detecting Fiber Waviness in Composite Structures

Rani Elhajjar, Rami Haj-Ali, Bo Siou Wei

Research output: Contribution to journalArticlepeer-review

Abstract

A full-field thermoelastic stress analysis infrared (TSA-IR) method is used to investigate the possibility of inspecting for out of plane fiber waviness in composite structures. Two different waviness profiles are generated and compared to control specimen having no anomalies. Tension and compression loading schemes are investigated and the TSA-IR emissions are compared to cross-sectional investigations. A subset of the specimens is also notched to investigate the thermal emissions from holes when compared to the waviness. The interaction of the hole and waviness shows the errors that can be introduced when using TSA-IR for quantitative analysis.

Original languageEnglish
Pages (from-to)1251-1258
Number of pages8
JournalPolymer - Plastics Technology and Engineering
Volume53
Issue number12
DOIs
StatePublished - Aug 2014

Keywords

  • Composites
  • Fiber waviness
  • Thermoelastic stress analysis
  • Thermography
  • Wrinkles

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Materials Chemistry
  • Polymers and Plastics
  • Materials Science (miscellaneous)

Fingerprint

Dive into the research topics of 'An Infrared Thermoelastic Stress Analysis Investigation for Detecting Fiber Waviness in Composite Structures'. Together they form a unique fingerprint.

Cite this