Future structural stability design for composite space and airframe structures

Journal article (2014)

Authors

Richard Degenhardt Private University of Applied Sciences, Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Saullo G.P. Castro Private University of Applied Sciences
Mariano A. Arbelo Private University of Applied Sciences
Rolf Zimmerman Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Regina Khakimova Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Alexander Kling Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Research Group
Aerospace Structures & Computational Mechanics (Aerospace Engineering) (TU Delft)
Degradation Buckling Postbuckling Composite structures Imperfection sensitivity
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Published Date

01-01-2014

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Aerospace Structures & Computational Mechanics

Abstract

Space and aircraft industry demands for reduced development and operating costs. Structural weight reduction by exploitation of structural reserves in composite space and aerospace structures contributes to this aim, however, it requires accurate and experimentally validated stability analysis. Currently, the potential of composite light weight structures, which are prone to buckling, is not fully exploited as appropriate guidelines in the field of aerospace and space applications do not exist. This paper deals with the state-of-the-art advances and challenges related to coupled stability analysis of composite structures which show very complex stability behaviour. Two types of thin-walled light weight structures endangered by buckling will be considered; imperfection tolerant and imperfection sensitive structures. For both groups improved design guidelines for composites structures are still under development. This paper gives a short state-of-the-art and presents proposals for future design guidelines.