Post fatigue and fatigue fracture behavior of stitchbonded biaxial carbon epoxy composites

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fatigue, post fatigue and fatigue fracture onset life behavior of a type of stitchbonded biaxial carbon epoxy composite is presented. Effects of stacking sequence [0/90]s and [90/0]s on initial static properties and damage evolution in the composite laminates are investigated. The stress and strain levels where damage at macro-scale initiates were determined. The tensile-tensile fatigue capacity of the composite with different stacking sequence at these levels was determined. The post fatigue residual tensile properties were determined to study the influences of damage evolution due to fatigue on mechanical properties of the composite laminates. The fatigue onset life experiment was conducted to determine the threshold energy release rate for stitchbonded composites. No significant influence of the layer stacking sequence on the initial stiffness of the material was reported; however, a large influence was found on the evolution of damage during the fatigue test particularly on [90/0]s composite laminate.

Original languageEnglish (US)
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
StatePublished - Aug 15 2013
Event54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Boston, MA, United States
Duration: Apr 8 2013Apr 11 2013

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Other

Other54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityBoston, MA
Period4/8/134/11/13

ASJC Scopus subject areas

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

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  • Cite this

    Yekani Fard, M., Raji, B., & Chattopadhyay, A. (2013). Post fatigue and fatigue fracture behavior of stitchbonded biaxial carbon epoxy composites. In 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [AIAA 2013-1877] (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).