Oblique plies for steering through-thickness delamination migration in fibre reinforced polymers

Rafael Luterbacher, Richard S. Trask, Ian P. Bond

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

Abstract

This work presents a feasibility study for steering delaminations through the thickness of composite laminates. The mechanism relies on the fact that delaminations tend not to migrate through plies with fibres oriented in the propagation direction. In this study, plies with fibres oriented in the propagation direction are angled through the thickness in order to steer delamination migration. Both static tests (mode I) and fatigue tests (skin-stiffener debond specimen) have shown the feasibility of this mechanism. Tensile and flexural tests have been performed in order to quantify the effect of this architecture on the global mechanical properties. A significant knockdown in longitudinal tensile strength has been observed, while, the effect on stiffness and flexural properties seems to be less significant.

Original languageEnglish
Title of host publication56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624103421
Publication statusPublished - 2015
Event56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015 - Kissimmee, USA United States
Duration: 5 Jan 20159 Jan 2015

Conference

Conference56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015
CountryUSA United States
CityKissimmee
Period5/01/159/01/15

    Fingerprint

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Mechanics of Materials
  • Building and Construction

Cite this

Luterbacher, R., Trask, R. S., & Bond, I. P. (2015). Oblique plies for steering through-thickness delamination migration in fibre reinforced polymers. In 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference American Institute of Aeronautics and Astronautics Inc..