Novel concept for the manipulation of damage and in-situ repair of composite t-joints

Jack F. Cullinan, Michael R. Wisnom, Ian P. Bond

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)

Abstract

A novel method for the in-situ repair of sub critical damage in complex composite structures (T-joints) using embedded hollow vasculature has been demonstrated. A number of configurations of vascularized T-joints have been presented and assessed for their efficacy at infiltrating damage planes. The effect of vasculature on the mechanical performance of the component was assessed both numerically and experimentally. 2D and 3D thermo-mechanical finite element (FE) analyses were performed to determine the influence of vasculature on thermal residual stresses and joint strength under 90° tensile (pull-off) loading. Failure loads and damage mechanisms observed during the mechanical testing agreed well with the analysis. All configurations of deltoid vasculature were successful in infiltrating the damage sites with an injected liquid. Further optimization is required, however, the vascularized deltoid configuration shows considerable promise for future industrial adaptation.

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

Conference

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

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