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A robust method for the simulation of quasi-brittle materials

Alnaas, Waled and Jefferson, Anthony Duncan 2016. A robust method for the simulation of quasi-brittle materials. Proceedings of the ICE - Engineering and Computational Mechanics 169 (3) , pp. 89-108. 10.1680/jencm.15.00019

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Abstract

In this paper, the authors describe a number of new acceleration techniques to improve the convergence properties of the recently developed smooth unloading–reloading (SUR) method for the finite-element simulation of quasibrittle materials. The proposed techniques involve predicting or approximating a damage evolution parameter to simplify the implementation of the SUR algorithm and improve its efficiency in terms of solution time. The latter improvement is illustrated using a series of idealised examples of plain and reinforced concrete sections. The paper also describes a convenient procedure for computing the characteristic length parameter for a range of two-dimensional and three-dimensional finite elements.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Additional Information: PDF uploaded in accordance with publisher's policies at http://www.sherpa.ac.uk/romeo/issn/1755-0777/ (accessed 4.8.16).
Publisher: ICE Publishing
ISSN: 1755-0777
Date of First Compliant Deposit: 4 August 2016
Date of Acceptance: 26 April 2016
Last Modified: 18 Oct 2019 13:09
URI: http://orca.cf.ac.uk/id/eprint/93578

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