CUED Publications database

Fully-Coupled Creep-Damage Models for Concrete

Dunant, CF and Hilaire, A (2015) Fully-Coupled Creep-Damage Models for Concrete. In: UNSPECIFIED pp. 1603-1610..

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© ASCE. The long term analysis of structures and structural elements depends on accounting both for the creep stress relaxation and the development of structural cracks. The development of such cracks may take place over long periods and therefore be difficult to distinguish from the viscous effects. Modelling structures under such slow-loading conditions requires the development of appropriate numerical models for material behaviour, and novel strategies for computing the link between creep and damage. In this paper, we present a new empirical model combining both aspects. The creep component is represented here using a Maxwell chain, and the material laws are based on the modified compression field theory (MCFT) and the Mazars model. The effects of speed-of-loading are investigated, and the effect of creep on the post-peak behaviour is assessed. A particular attention is given to the implementation which integrates models developed with widely differing aims.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:00
Last Modified: 22 May 2018 08:20