Finite-element analysis of cylindrical panels with random initial imperfections

Papadopoulos, V; Papadrakakis, M

dc.contributor.author	Papadopoulos, V	en
dc.contributor.author	Papadrakakis, M	en
dc.date.accessioned	2014-03-01T01:20:32Z
dc.date.available	2014-03-01T01:20:32Z
dc.date.issued	2004	en
dc.identifier.issn	0733-9399	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15948
dc.subject	finite elements	en
dc.subject	imperfection	en
dc.subject	stochastic processes	en
dc.subject	panels	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Buckling	en
dc.subject.other	Monte Carlo methods	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Problem solving	en
dc.subject.other	Random processes	en
dc.subject.other	Stiffness matrix	en
dc.subject.other	Average methods	en
dc.subject.other	Cylindrical panels	en
dc.subject.other	Stochastic finite-element analysis	en
dc.subject.other	Finite element method	en
dc.subject.other	finite element analysis	en
dc.subject.other	shell	en
dc.title	Finite-element analysis of cylindrical panels with random initial imperfections	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)0733-9399(2004)130:8(867)	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)0733-9399(2004)130:8(867)	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	Stochastic finite-element analysis of shells is performed using the spectral representation method for the description of the random fields in conjunction with the local average method for the formulation of the stochastic stiffness matrix of the elements. A stochastic formulation of the nonlinear triangular composites facet triangular shell element is implemented for the stability analysis of cylindrical panels with random initial imperfections. The imperfections are described as a two-dimensional univariate homogeneous stochastic field. The elastic modulus and the shell thickness are also described as two-dimensional uni-variate homogeneous stochastic fields. The variability of the limit load of the cylindrical panel is then computed using the Monte Carlo simulation. Useful conclusions for the buckling behavior of cylindrical panels with random initial imperfections are derived from the numerical tests presented in this paper. These tests also demonstrate the applicability of the proposed methodology in realistic problems. © ASCE.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	Journal of Engineering Mechanics	en
dc.identifier.doi	10.1061/(ASCE)0733-9399(2004)130:8(867)	en
dc.identifier.isi	ISI:000223001200001	en
dc.identifier.volume	130	en
dc.identifier.issue	8	en
dc.identifier.spage	867	en
dc.identifier.epage	876	en