Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminum 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 employing limit design to overcome uncertainties concerning actual response due to inelastic constitutive behavior 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 where a new strain-based approach is used that allowed describing the residual stress and displacement in terms of permanent strain. The strategy used the permanent strain as the effective parameters of the procedure so that it was possible to assess the ductility requirements for the complete load program developed till collapse or shakedown. The procedure is compared to experimental results obtained on aluminum beams in shakedown.

Subject Areas

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

Comments (1)

Comment 1
Received: 19 May 2020
Commenter: Vincenzo Minutolo
Commenter's Conflict of Interests: Author
Comment: The paper has been revised and amended after the Reviewer's comments.
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