Real-time ultrasonic monitoring of fiber-matrix debonding in ceramic-matrix composite

Shi Chang Wooh, Isaac M. Daniel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Real-time ultrasonic techniques were developed for monitoring damage in a unidirectional ceramic-matrix composite under longitudinal tensile loading. Specifically, shear-wave transducers producing waves polarized in the transverse to the fiber direction were used in contact with the specimen to detect the initiation and propagation of fiber-matrix debonding, and to determine the transverse shear modulus and its degradation. The ultrasonically measured transverse shear modulus and its degradation was in reasonably good agreement with a prediction based on a modified shear lag model and interpolation between available solutions for fully bonded and fully unbonded fibers.

Original languageEnglish (US)
Pages (from-to)379-388
Number of pages10
JournalMechanics of Materials
Volume17
Issue number4
DOIs
StatePublished - Apr 1994

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Mechanics of Materials

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