The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells

Thin-walled cylindrical shells are susceptible to buckling failures caused by the axial compressive loading. During the design process or the buckling failure evaluation of axially-compressed cylindrical shells, initial geometric and loading imperfections are of important parameters for the analyses...

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Main Authors:	Ismail, M.S., Purbolaksono, J., Andriyana, A., Tan, C.J., Muhammad, N., Liew, H.L.
Format:	Article
Published:	Engineering Failure Analysis 2015
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://www.sciencedirect.com/science/article/pii/S1350630715000746 http://www.sciencedirect.com/science/article/pii/S1350630715000746 http://eprints.um.edu.my/13746/1/The_use_of_initial_imperfection_approach_in_design_process.pdf

id	um-13746
recordtype	eprints
spelling	um-137462015-07-22T01:56:02Z The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells Ismail, M.S. Purbolaksono, J. Andriyana, A. Tan, C.J. Muhammad, N. Liew, H.L. T Technology (General) TJ Mechanical engineering and machinery Thin-walled cylindrical shells are susceptible to buckling failures caused by the axial compressive loading. During the design process or the buckling failure evaluation of axially-compressed cylindrical shells, initial geometric and loading imperfections are of important parameters for the analyses. Therefore, the engineers/designers are expected to well understand the physical behaviours of shell buckling to prevent unexpected serious failure in structures. In particular, it is widely reported that no efficient guidelines for modelling imperfections in composite structures are available. Knowledge obtained from the relevant works is open for updates and highly sought. In this work, we study the influence of imperfections on the critical buckling of axially compressed cylindrical shells for different geometries and composite materials (Glass Fibre Reinforced Polymer (GFRP), Carbon Fibre Reinforced Polymer (CFRP)) and aluminium using the finite element (FE) analysis. Two different imperfection techniques called eigenmode-affine method and single perturbation load approach (SPLA) were adopted. Validations of the present results with the published experimental data were presented. The use of the SPLA for introducing an imperfection in axially compressed composite cylindrical shells seemed to be desirable in a preliminary design process and an investigation of a buckling failure. The knockdown factors produced by the SPLA were becoming attractive to account for uncertainties in the structure. (C) 2015 Elsevier Ltd. All rights reserved. Engineering Failure Analysis 2015-05 Article PeerReviewed application/pdf http://eprints.um.edu.my/13746/1/The_use_of_initial_imperfection_approach_in_design_process.pdf http://www.sciencedirect.com/science/article/pii/S1350630715000746 Ismail, M.S.; Purbolaksono, J.; Andriyana, A.; Tan, C.J.; Muhammad, N.; Liew, H.L. (2015) The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells. Engineering Failure Analysis <http://eprints.um.edu.my/view/publication/Engineering_Failure_Analysis.html>, 51. pp. 20-28. ISSN 1350-6307 http://eprints.um.edu.my/13746/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Ismail, M.S. Purbolaksono, J. Andriyana, A. Tan, C.J. Muhammad, N. Liew, H.L. The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
description	Thin-walled cylindrical shells are susceptible to buckling failures caused by the axial compressive loading. During the design process or the buckling failure evaluation of axially-compressed cylindrical shells, initial geometric and loading imperfections are of important parameters for the analyses. Therefore, the engineers/designers are expected to well understand the physical behaviours of shell buckling to prevent unexpected serious failure in structures. In particular, it is widely reported that no efficient guidelines for modelling imperfections in composite structures are available. Knowledge obtained from the relevant works is open for updates and highly sought. In this work, we study the influence of imperfections on the critical buckling of axially compressed cylindrical shells for different geometries and composite materials (Glass Fibre Reinforced Polymer (GFRP), Carbon Fibre Reinforced Polymer (CFRP)) and aluminium using the finite element (FE) analysis. Two different imperfection techniques called eigenmode-affine method and single perturbation load approach (SPLA) were adopted. Validations of the present results with the published experimental data were presented. The use of the SPLA for introducing an imperfection in axially compressed composite cylindrical shells seemed to be desirable in a preliminary design process and an investigation of a buckling failure. The knockdown factors produced by the SPLA were becoming attractive to account for uncertainties in the structure. (C) 2015 Elsevier Ltd. All rights reserved.
format	Article
author	Ismail, M.S. Purbolaksono, J. Andriyana, A. Tan, C.J. Muhammad, N. Liew, H.L.
author_facet	Ismail, M.S. Purbolaksono, J. Andriyana, A. Tan, C.J. Muhammad, N. Liew, H.L.
author_sort	Ismail, M.S.
title	The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
title_short	The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
title_full	The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
title_fullStr	The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
title_full_unstemmed	The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
title_sort	use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells
publisher	Engineering Failure Analysis
publishDate	2015
url	http://www.sciencedirect.com/science/article/pii/S1350630715000746 http://www.sciencedirect.com/science/article/pii/S1350630715000746 http://eprints.um.edu.my/13746/1/The_use_of_initial_imperfection_approach_in_design_process.pdf
first_indexed	2018-09-06T06:17:06Z
last_indexed	2018-09-06T06:17:06Z
_version_	1610837788540796928

The use of initial imperfection approach in design process and buckling failure evaluation of axially compressed composite cylindrical shells

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