Characterization of fatigue damage in high temperature composite laminates

Zuo Sun*, Isaac M. Daniel, J. J. Luo

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Advanced polymer composites are widely used in high speed transport airframe structures and aircraft engine components due to their high strength, high stiffness, high temperature tolerance and light weight properties. One critical issue for structural designers and material developers is long term behavior of advanced polymer matrix composites (PMC) and their associated damage and failure mechanisms. For example, fatigue damage of a carbon/epoxy composite proposed for high temperature applications needs to be understood to predict its long term behavior. Experiments show that the first stage of fatigue damage of cross-ply laminates is transverse matrix cracking. This study focuses on fatigue matrix cracking in transverse layers and cracking multiplication prediction under fatigue loading. Fatigue damages at both room and elevated temperatures are characterized experimentally. Furthermore, Fatigue Monte Carlo technique is applied to simulate the nondeterministic transverse cracking procedure based on stress analysis model, stress-life curve and damage accumulation model. It is shown that the simulation based on Miner's rule agrees well with experimental results at both room and high temperatures.

Original languageEnglish (US)
Pages (from-to)1662-1675
Number of pages14
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume47 II
StatePublished - Jan 1 2002
Event47th International SAMPE Symposium and Exhibition - Long Beach, CA, United States
Duration: May 12 2002May 16 2002

Keywords

  • Fatigue
  • Polymer matrix composites
  • Testing/evaluation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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