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Stochastic multi-objective optimization of a viscoelastic composite plate

Identifieur interne : 002A52 ( Main/Exploration ); précédent : 002A51; suivant : 002A53

Stochastic multi-objective optimization of a viscoelastic composite plate

Auteurs : A. Teters [Lettonie] ; F. Kregers [Lettonie] ; G. Melbardis [Lettonie]

Source :

RBID : ISTEX:5C6AC798CF0AF3DB2ACC544F1A7C50CCD4DB78FE

Abstract

Abstract: A layered viscoelastic rectangular plate fiber-reinforced in three directions and compressed in one direction has been studied. Two plate properties, namely, the critical compressive stress σcr and the coefficient of linear thermal expansion αxx, were analyzed by varying two parameters of the reinforcement geometry. The properties of the plate are determined by the properties of the composite components, eight of which are considered stochastic. The problem was solved for two variants: αxx → min or αxx → max. The calculations were carried out for three time intervals: t = 0, 27 days, and ∞. For t = 0, the region of t≂ real plate properties is determined with isolines for design parameters. Multi-objective compromise solutions are given for all three times t for each of the two variants along with the parameters of the property scatter ellipses.

Url:
DOI: 10.1007/BF00615640


Affiliations:


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<div type="abstract" xml:lang="en">Abstract: A layered viscoelastic rectangular plate fiber-reinforced in three directions and compressed in one direction has been studied. Two plate properties, namely, the critical compressive stress σcr and the coefficient of linear thermal expansion αxx, were analyzed by varying two parameters of the reinforcement geometry. The properties of the plate are determined by the properties of the composite components, eight of which are considered stochastic. The problem was solved for two variants: αxx → min or αxx → max. The calculations were carried out for three time intervals: t = 0, 27 days, and ∞. For t = 0, the region of t≂ real plate properties is determined with isolines for design parameters. Multi-objective compromise solutions are given for all three times t for each of the two variants along with the parameters of the property scatter ellipses.</div>
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