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Future Design for Composite Airframe Structures – The Projects POSICOSS and COCOMAT

Degenhardt, Richard (2006) Future Design for Composite Airframe Structures – The Projects POSICOSS and COCOMAT. 4th International Conference on New Aerospace Trends, 2006-10-26 - 2006-10-27, Bilbao, Spanien.

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European aircraft industry demands for reduced development and operating costs, by 20% and 50% in the short and long term, respectively. Contributions to this aim are provided by the completed project POSICOSS and the running follow-up project COCOMAT, both supported by the European Commission. As an important contribution to cost reduction a decrease in structural weight can be reached by exploiting considerable reserves in primary fibre composite fuselage structures through an accurate and reliable simulation of postbuckling and collapse. The POSICOSS team developed fast procedures for postbuckling analysis of fibre composite stiffened panels, created comprehensive experimental data bases and derived design guidelines. COCOMAT builds up on the POSICOSS results and considers in addition the simulation of collapse by taking degradation into account. The results comprise an extended experimental data base, degradation models, improved certification and design tools as well as design guidelines. This paper presents an overview of major results from the POSICOSS project as well as the objectives and planned tasks of COCOMAT. In addition, DLR’s first findings of the COCOMAT project are given.

Document Type:Conference or Workshop Item (Paper)
Title:Future Design for Composite Airframe Structures – The Projects POSICOSS and COCOMAT
AuthorsInstitution or Email of Authors
Degenhardt, RichardUNSPECIFIED
Keywords:Collapse, Buckling, Postbuckling, Composites, Simulation tools, Experiments, Degradation, Skin stringer separation
Event Title:4th International Conference on New Aerospace Trends
Event Location:Bilbao, Spanien
Event Type:international Conference
Event Dates:2006-10-26 - 2006-10-27
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems
Deposited By: Doris Ries
Deposited On:21 Apr 2007
Last Modified:12 Dec 2013 20:23

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