elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Linear buckling predictions of unstiffened laminated composite cylinders and cones under various loading and boundary conditions using semi-analytical models

Castro, Saullo and Mittelstedt, Christian and Monteiro, Fransisco and Arbelo, Mariano and Ziegmann, Gerhard and Degenhardt, Richard (2014) Linear buckling predictions of unstiffened laminated composite cylinders and cones under various loading and boundary conditions using semi-analytical models. Composite Structures, 118, pp. 303-315. Elsevier. DOI: 10.1016/j.compstruct.2014.07.037 ISSN 0263-8223

Full text not available from this repository.

Abstract

Semi-analytical models for the linear buckling analysis of unstiffened laminated composite cylinders and cones with flexible boundary conditions are presented. The Classical Laminated Plate Theory and the First-order Shear Deformation Theory are used in conjunction with the Donnell’s non-linear equations to derive the buckling equations. Axial, torsion and pressure loads can be applied individually or combined in the proposed models. The stiffness matrices are integrated analytically and for the conical shells an approximation is proposed to overcome non-integrable expressions. Comparisons with the literature show that the classical base functions available for axial compression cannot capture the buckling modes for non-orthotropic laminates. For torsion loads these classical shape functions do not catch the buckling modes even when applying the assumption of pure orthotropy, and it is shown how the proposed models correlate well with experimental data from the literature and finite element results. The use of elastic constraints at the boundaries allows the simulation of different boundary conditions in a versatile way and it is shown how those constants can be adjusted in order to change from one type of boundary condition to another.

Item URL in elib:https://elib.dlr.de/90114/
Document Type:Article
Title:Linear buckling predictions of unstiffened laminated composite cylinders and cones under various loading and boundary conditions using semi-analytical models
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Castro, SaulloPFH GöttingenUNSPECIFIED
Mittelstedt, ChristianSogettiUNSPECIFIED
Monteiro, FransiscoUNSPECIFIEDUNSPECIFIED
Arbelo, MarianoPFH GöttingenUNSPECIFIED
Ziegmann, GerhardTU Clausthal-ZellerfeldUNSPECIFIED
Degenhardt, RichardDLRUNSPECIFIED
Date:August 2014
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:118
DOI :10.1016/j.compstruct.2014.07.037
Page Range:pp. 303-315
Publisher:Elsevier
ISSN:0263-8223
Status:Published
Keywords:Linear buckling; Composite; Cylinders and cones; Axial compression; Torsion; Pressure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - HL-Primärstrukturen für Orbitale Systeme
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Degenhardt, Richard
Deposited On:11 Aug 2014 08:25
Last Modified:10 Jan 2019 15:46

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.