Experimental validation of the damage-plasticity modeling concept for normal strength concrete in fire
Journal of Structural Fire Engineering
ISSN: 2040-2317
Article publication date: 7 August 2017
Issue publication date: 2 February 2018
Abstract
Purpose
This paper aims to investigate with strain-rate controlled uniaxial cyclic compression tests the softening behavior of concrete and its elastic stiffness degradation with increasing plastic straining.
Design/methodology/approach
Such tests at ambient temperature show that concrete exhibits the phenomenon of elastic stiffness degradation, which can be captured by damage-plasticity models.
Findings
The experimentally derived evolutions of the elastic stiffness with plastic strain confirm the suitability of the damage-plasticity modeling concept for concrete in compression at elevated temperatures and provide novel calibration data.
Originality/value
Temperature-dependent concrete models implementing this modeling concept are often used presently in structural fire engineering, despite the lack of experiment-based validation data.
Keywords
Citation
Neuenschwander, M., Scandella, C., Knobloch, M. and Fontana, M. (2018), "Experimental validation of the damage-plasticity modeling concept for normal strength concrete in fire", Journal of Structural Fire Engineering, Vol. 9 No. 1, pp. 53-62. https://doi.org/10.1108/JSFE-01-2017-0001
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited