A new constitutive model for steel fibre reinforced concrete subjected to dynamic loads

YANG, L, Lin, S, Li, H and Gravina, R 2019, 'A new constitutive model for steel fibre reinforced concrete subjected to dynamic loads', Composite Structures, vol. 221, pp. 1-11.


Document type: Journal Article
Collection: Journal Articles

Title A new constitutive model for steel fibre reinforced concrete subjected to dynamic loads
Author(s) YANG, L
Lin, S
Li, H
Gravina, R
Year 2019
Journal name Composite Structures
Volume number 221
Start page 1
End page 11
Total pages 11
Publisher Elsevier
Abstract The use of steel fibre reinforced concrete (SFRC) in protective structures has gained worldwide interest due to its superior mechanical characteristics. At present, hydrocode material models have been frequently used to simulate the dynamic behaviour of SFRC subjected to impact and blast loads. However, as these material models are developed for normal concrete, much effort is required for model calibration, and their other drawbacks, such as the neglect of shear dilation and the inappropriate consideration of strain-rate effect, may lead to inaccuracies in numerical predictions. In this study, a new constitutive material model is developed for SFRC, in which the damage evolution, shear dilation and strain-rate dependent material properties are properly taken into account. The new material model could accurately capture the mechanical behaviours of SFRC (i.e. strain hardening and softening in both compression and tension) with simple input parameters. It is then incorporated into the commercial finite element code LS-DYNA to simulate the structural behaviour of SFRC components under various loading conditions. The effectiveness and accuracy of the new material model are validated against the reported experimental results.
Subject Structural Engineering
Keyword(s) Constitutive material model
Dynamic behaviour
Numerical simulation
Steel fibre reinforced concrete
DOI - identifier 10.1016/j.compstruct.2019.04.021
Copyright notice © 2019 Elsevier Ltd. All rights reserved.
ISSN 0263-8223
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Altmetric details:
Access Statistics: 17 Abstract Views  -  Detailed Statistics
Created: Thu, 23 May 2019, 08:44:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us