Preprint Article Version 1 This version is not peer-reviewed

Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminium Beam

Version 1 : Received: 2 April 2020 / Approved: 3 April 2020 / Online: 3 April 2020 (03:35:36 CEST)
Version 2 : Received: 18 May 2020 / Approved: 19 May 2020 / Online: 19 May 2020 (04:29:36 CEST)

A peer-reviewed article of this Preprint also exists.

Palladino, S.; Esposito, L.; Ferla, P.; Totaro, E.; Zona, R.; Minutolo, V. Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminum Beam. Appl. Sci. 2020, 10, 3610. Palladino, S.; Esposito, L.; Ferla, P.; Totaro, E.; Zona, R.; Minutolo, V. Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminum Beam. Appl. Sci. 2020, 10, 3610.

Journal reference: Appl. Sci. 2020, 10, 3610
DOI: 10.3390/app10103610

Abstract

Safety assessment of structures can be obtained by means of limit design in order to overcome uncertainties concerning actual response due to inelastic constitutive behaviour and more generally to non-linear structural response and loads’ random variability. The limit analysis is used for evaluating the safety of the structures directly starting from load level without any knowledge of the load history. In the paper, the lower bound calculation is proposed based on permanent strain parametric description of the residual stress. The strategy allows considering the permanent strain as the effective parameters of the procedure and can be used to control the ductility requirements until complete load program develops. In this way one can control if the structure can develop entirely its possibility of plastic adaptation up to required load level. The procedure is compared to experimental results obtained on aluminium beams in shake down.

Subject Areas

shakedown; plasticity; limit design; ratcheting; experimental comparison; residual displacement

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.