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- W2077665235 abstract "The dynamic buckling of thin viscoplastic cylindrical shells is considered in the formulation developed by Abrahamson and Goodier [1]. The constitutive equations employed describe the rate sensitive plastic material and a biaxial state of stress is considered. The influence of the viscosity parameter on the buckling process is discussed in detail and in the limiting case the solution for a perfectly plastic material is obtained. From the analysis of the final deflections as a function of the applied impulse the “stability effect” of the viscous properties of the material on the buckling process is determined. On considère le flambage dynamique de coques minces cylindriques viscoplastiques selon la formulation développée par Abrahamson et Goodier (1). Les équations fondamentales utilisées décrivent le matériau plastique sensible au taux de déformation et on considère un état de contrainte biaxial. On discute en détail l'influence du paramètre de viscosité sur le processus de flambage et à la limite on obtient la solution pour un matériau plastique idéal. A partir de l'analyse de l'impulsion critique en fonction de l'impulsion appliquée on détermine l'effet de stabilité des propriétés visqueuses du matériau sur le processus de flambage. Dynamische Knickung der dünnen zylindrischen zäh-plastischen Schalen wird als Erweiterung der Theorie von Goodier und Abrahamson [1] betrachtet. Die Stoffgleichungen des zäh-plastischen Körpers und der zweiachsige Spannungszustand werden angenommen. Der Einfluss des Zähigkeitskoeffizienten auf den Knickungvorgang wird ausführlich geprüft. Durch einen Grenzübergang wird die Lösung für den perfekt-plastischen Körper erhalten. Nach der Analyse der Enddurchbiegung als Funktion des Impulses wird der stabilisierende Zähigkeits-Effekt bestimmt. B paбoтye paccмoтpyeпa зaдaшa дппaмишyecкoгo BыпyшиBaкия тoикич Bязкoпнлacтн-шyecкич цилиндpыиишyecкич oбoлoшyeк B cфopмиpoBaниy нaшaтым шyepyeз aбpaчaмcoпa и гyдиyepa [1]. Пpиняты oпpyeдyeляющиye ypaBнyeния для мaтyepиaлa шyBcтBитyeльнoгo к cкopocти дyeфopмиpo-Baния и paиcмoтpyeнo дByeocyeBoye coyeтoяниye нaиpяжyeния. oбcyждyeнo дyeтaльнo Bлияниye Bязкocти мaтyepииaлa нa пpoцyecc BышyшпBaния. Пoлquшyeнo тaкжye pyeшyeниye B paмкaч тyeopпп плaттишнocти, яBляющyeyecя pyeзyльтaтoм пpyeдyeльнoгo нyepyeчoдa B кpaBнyeнияч для Bяззкoилacтишyecкoгo мaтyepиaтa. лз aнaлизa ocтaтoшныч иyepyeмyeщyeнь, B фyeнкции пpиклaдыBayeмoг пмнyльca oпpyeдyeлyeнo cтaбилизaцпoнный эффyeкт Bязкoyeти мaтyepиaлa." @default.
- W2077665235 created "2016-06-24" @default.
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- W2077665235 date "1973-08-01" @default.
- W2077665235 modified "2023-09-27" @default.
- W2077665235 title "Buckling of short viscoplastic cylindrical shells subjected to radial impulse" @default.
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- W2077665235 doi "https://doi.org/10.1016/0020-7462(73)90022-x" @default.
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