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Imperfection Sensitivity of Antisymmetric Cross-Ply Cylindrical Shell Under Axial Compression Using Hui's Postbuckling Theory

Xu, Hailan and Hui, David and Castro, Saullo and Arbelo, Mariano and Degenhardt, Richard (2013) Imperfection Sensitivity of Antisymmetric Cross-Ply Cylindrical Shell Under Axial Compression Using Hui's Postbuckling Theory. 21st International Annual Conference on Composites Engineering (ICCE 21) , 21.-27.July 2013, Tenerife, Spain.

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Abstract

This study deals with the use of Hui's Postbuckling Theory in antisymmetric cross-ply cylindrical shell under axial compression. The Hui's postbuckling theory, also termed the Improved Koiter’s postbuckling theory was first applied to buckling of structures such as axial postbuckling of cylindrical panels and postbuckling of beams (Hui and Chen 1986, Hui 1988). In this theory, the postbuckling b coefficient, as developed by Budiansky and Hutchinson (1964) is evaluated at the actual applied load rather than at the classical buckling load as Koiter's general stability theory. The results are compared with ABAQUS simulation results. A significant positive shift of the postbuckling b coefficient is found which indicates that the Koiter's general theory first published in 1945, has significantly overestimated the imperfection sensitivity of the structure. Also, compare with the Koiter's general stability theory, the valid region is significantly increased by using Hui's postbuckling theory.

Item URL in elib:https://elib.dlr.de/83850/
Document Type:Conference or Workshop Item (Speech)
Title:Imperfection Sensitivity of Antisymmetric Cross-Ply Cylindrical Shell Under Axial Compression Using Hui's Postbuckling Theory
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Xu, HailanUniversity of New Orleans, LA, USAUNSPECIFIED
Hui, DavidUniversity of New Orleans, LA, USAUNSPECIFIED
Castro, SaulloPFH GöttingenUNSPECIFIED
Arbelo, MarianoPFH GöttingenUNSPECIFIED
Degenhardt, RichardUNSPECIFIEDUNSPECIFIED
Date:2013
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:composite structures, buckling, Imperfection Sensitivity
Event Title:21st International Annual Conference on Composites Engineering (ICCE 21)
Event Location:Tenerife, Spain
Event Type:international Conference
Event Dates:21.-27.July 2013
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 - Numerische Verfahren und Simulation
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Degenhardt, Richard
Deposited On:11 Nov 2013 20:27
Last Modified:31 Jul 2019 19:41

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