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AN ANALYSIS TOOL FOR DESIGN AND CERTIFICATION OF POSTBUCKLING COMPOSITE AEROSPACE STRUCTURES

Orifici, Adrian C. and Thomson, Rodney S. and Degenhardt, Richard and Bisagni, Chiara and Bayandor, Javid (2010) AN ANALYSIS TOOL FOR DESIGN AND CERTIFICATION OF POSTBUCKLING COMPOSITE AEROSPACE STRUCTURES. International Journal of Structural Stability and Dynammics, 10 (4), pp. 669-683. World Scientific Publishing Co. ISSN 0219-4554

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Abstract

In aerospace, carbon fibre-reinforced polymer (CFRP) composites and postbuckling skin-stiffened structures are key technologies that have been used to improve structural efficiency. However, the application of composite postbuckling structures in aircraft has been limited due to concerns related to both the durability of composite structures and the accuracy of design tools. In this work, a finite element analysis tool for design and certification of aerospace structures is presented, which predicts collapse by taking the critical damage mechanisms into account. The tool incorporates a global-local analysis technique for predicting interlaminar damage initiation, and degradation models to capture the growth of a pre-existing interlaminar damage region, such as a delamination or skin-stiffener debond, and in-plane ply damage mechanisms such as fibre fracture and matrix cracking. The analysis tool has been applied to single- and multi-stiffener fuselage-representative composite panels, in both intact and pre-damaged configurations. This has been performed in a design context, in which panel configurations are selected based on their suitability for experimental testing, and in an analysis context for comparison with experimental results as representative of aircraft certification studies. For all cases, the tool was capable of accurately capturing the key damage mechanisms contributing to final structural collapse, and suitable for the design of next-generation composite aerospace structures.

Item URL in elib:https://elib.dlr.de/65135/
Document Type:Article
Title:AN ANALYSIS TOOL FOR DESIGN AND CERTIFICATION OF POSTBUCKLING COMPOSITE AEROSPACE STRUCTURES
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Orifici, Adrian C.School of Aerospace, Mechanical and Manufacturing Engineering, Royal Melbourne Institute of Technology, Australia UNSPECIFIED
Thomson, Rodney S.Cooperative Research Centre for Advanced Composite Structures, Victoria, AustraliaUNSPECIFIED
Degenhardt, RichardUNSPECIFIEDUNSPECIFIED
Bisagni, ChiaraDipartimento di Ingegneria Aerospaziale, Politecnico di MilanoUNSPECIFIED
Bayandor, JavidThe Sir Lawrence Wackett Aerospace Centre School of Aerospace, Mechanical and Manufacturing Engineering, Royal Melbourne Institute of Technology, AustraliaUNSPECIFIED
Date:October 2010
Journal or Publication Title:International Journal of Structural Stability and Dynammics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:10
Page Range:pp. 669-683
Editors:
EditorsEmail
Yang, Y.B.National Tauwan University
Wang, C.M.National University of Singapore
Reddy, J.N.Texas A&M University
Degenhardt, RichardDLR, Guest Editor
Publisher:World Scientific Publishing Co
Series Name:International Journal of Structural Stability and Dynamics
ISSN:0219-4554
Status:Published
Keywords:COCOMAT, stiffened structures, postbuckling, interlaminar damage, ply damage
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Ries, Doris
Deposited On:01 Sep 2010 10:36
Last Modified:06 Sep 2019 15:26

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