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Experimental characterization of buckling load on imperfect cylindrical shells using the multiple perturbation load approach

Arbelo, Mariano and Castro, Saullo and Kalnins, Kaspars and Ozolins, Olgerts and Khakimova, Regina and Degenhardt, Richard (2014) Experimental characterization of buckling load on imperfect cylindrical shells using the multiple perturbation load approach. European conference on spacecraft structures, materials & environmental testing, 1.-4.Apr. 2014, Braunschweig.

Full text not available from this repository.

Abstract

The paper present a discussion related to the use of the “Single perturbation Load Approach” (SPLA) as a methodology to represent geometric imperfection of imperfection sensitive shell structures prone to buckling. In this context, the paper compares the effect of the SPLA on the buckling load of composite cylindrical shells against an alternative methodology, which combines several perturbation loads in different positions, called “Multiple Perturbation Load Approach”. The aim of this paper is to investigate if the SPLA is the worst geometrical imperfection case scenario to be used for finite element simulation. Since the paper is based on experimental results, a benchmark case is developed using a composite cylindrical shell with a radius over thickness ratio of 400. The results of buckling load using one, two and three perturbation loads distributed along the surface of the cylinder shown that the less conservative knock-down factors are obtained by using SPLA

Item URL in elib:https://elib.dlr.de/90355/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental characterization of buckling load on imperfect cylindrical shells using the multiple perturbation load approach
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Arbelo, MarianoPFH GöttingenUNSPECIFIED
Castro, SaulloPFH GöttingenUNSPECIFIED
Kalnins, KasparsRTUUNSPECIFIED
Ozolins, OlgertsRTUUNSPECIFIED
Khakimova, ReginaDLRUNSPECIFIED
Degenhardt, RichardDLRUNSPECIFIED
Date:1 April 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Buckling, experiments, Composites, imperfections
Event Title:European conference on spacecraft structures, materials & environmental testing
Event Location:Braunschweig
Event Type:international Conference
Event Dates:1.-4.Apr. 2014
Organizer:DLR
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:25 Aug 2014 11:16
Last Modified:25 Aug 2014 11:16

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