Numerical analysis of fiber fragmentation in a SiC/A1 single-fiber composite specimen

Jean E. Davis, Jianmin Qu

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this paper, a numerical analysis by the finite-element method was carried out to simulate the fiber-fragmentation process in a single-fiber composite (SFC) specimen. The objective is to understand the fiber-fracture process and the way in which this process is affected by the fiber/matrix interface properties. In the analysis, the fiber strength is described by a Weibull distribution, the aluminum matrix is assumed to be elastic/plastic with a linear hardening law, and the fiber/matrix interface is modeled by an elastic/perfectly-plastic spring layer. In addition to the stress and strain distributions in the SFC, the evolution of fiber fractures and the stress/strain curves under monotonic loading were obtained through a sequence of finite-element computations with decreasing size of unit cell. The results indicate that the saturation length of the fiber fragments is very sensitive to the fiber/matrix interfacial strength. Therefore, it might be used as an indicator to measure the in situ fiber/matrix interfacial bond strength. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2297-2307
Number of pages11
JournalComposites Science and Technology
Volume60
Issue number12-13
DOIs
StatePublished - Sep 2000

Keywords

  • Fiber fracture
  • Fragmentation
  • Interfacial strength
  • Single-fiber composite

Fingerprint

Dive into the research topics of 'Numerical analysis of fiber fragmentation in a SiC/A1 single-fiber composite specimen'. Together they form a unique fingerprint.

Cite this