@inproceedings{f0e3761271874657b0d27d3380667efe,
title = "Debond resisting composite stringers",
abstract = "The following extends existing work done by Cosentino and Weaver on predicting crack initiation in discretely assembled skin/stringer composite panels. This allows for the anal- ysis of fully coupled systems ie. non-zero B matrix. The nonlinear structural behaviour is obtained by means of the von Karman formulation for moderately large deections in plates; three-dimensional assemblies are schematized and the effect of eccentricity is in- cluded in the simulation. Solutions are calculated by means of a Rayleigh-Ritz approach based on Galerkin's method, and a linear elastic fracture mechanics-based model is used to simulate the crack initiation in the critical regions. Using this method a bi-level opti- misation using lamination parameters was performed subject to closed form buckling and debonding constraints. The optimisation was performed with respect to improving the strength and overall load carrying capacity for a fixed geometry. The results show through the use of layup optimisation incorporating exure-membrane coupling effects debonding can be reduced.",
author = "O'Donnell, {Matthew P.} and Weaver, {Paul M.} and Enzo Cosentino",
year = "2012",
doi = "10.2514/6.2012-1613",
language = "English",
isbn = "9781600869372",
series = "Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference",
note = "53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference ; Conference date: 23-04-2012 Through 26-04-2012",
}