Interfacial debond of shape memory alloy composites

Chi Kin Poon, Li Min Zhou, Wei Jin, San-Qiang Shi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

A theoretical model for the prediction of interfacial behaviour is successfully developed for composites with pre-strained shape memory alloy (SMA) fiber. A two-cylinder model with a thin SMA fibre surrounding by epoxy matrix is employed for a pull-out test. The material constants and thermomechanical properties of the constituents were determined from a series of tensile tests, stress-recovery tests and strain-constrained tests. All this information is then substituted into the newly developed model so as to predict the debonding behaviour, initial debond stress and critical bonded fibre length. The maximum debond stresses at different activation temperatures are predicted and compared with the experimental results obtained from the fiber pull-out test. The good agreement between experimental findings and theoretical results warrants the application of this new developed theoretical model on the design of SMA-reinforced composites and structures.
Original languageEnglish
JournalSmart Materials and Structures
Volume14
Issue number4
DOIs
Publication statusPublished - 1 Aug 2005

ASJC Scopus subject areas

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

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