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Meccanica

, Volume 26, Issue 1, pp 37–46 | Cite as

Bilateral bounds for structures under dynamic shakedown conditions

  • Francesco Genna
Article

Abstract

Bounds to functions of the plastic strains produced during the elastic-plastic stage of a dynamic loading process leading to shakedown can be constructed on the basis of the solution of a single, static, holonomic elastic-plastic problem. This bounding procedure is described in detail with respect to the case of periodic external loading, and the generalization to an arbitrary dynamic loading condition is provided. Simple examples illustrate the bounding effectiveness of the proposed technique.

Key words

Dynamic shakedown bounds fictitious holonomic solutions structural mechanics 

sommario

Si mostra come sia possibile produrre delimitazioni di funzioni delle deformazioni plastiche che avvengono durante la fase iniziale di un processo dinamico che si concluda con l'adattamento in regime elastico (shakedown). Si illustra in dettaglio la procedure di delimitazione con riferimento al caso di carichi esterni periodici, e si fornisce l'estensione concettuale al caso di una condizione di carico generica. Due esempi numerici mostrano l'accuratezza e l'efficienza numerica della tecnica proposta.

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Francesco Genna
    • 1
  1. 1.Department of Structural EngineeringPolitecnico di MilanoMilanItaly

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