A four-exponential model to describe the behaviour of fibre reinforced concrete

Title: A four-exponential model to describe the behaviour of fibre reinforced concrete
Author(s): M. K. Lee, B. I. G. Barr
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 37
Issue: 271
Issue date: 2004-08-01
Publication year: 2004
Pages: 464 - 471
Total Pages: 8
Nb references: 16
Language: English

Abstract: The paper reports on a proposed four-exponential (four-e) model to describe the behaviour of fibre reinforced concrete (FRC) in flexure.
The four-e model was found to be capable to model a variety of curves and has the advantage of being able to model the complete load-deformation response of FRC with one continuous function.
The four-e model is also mathematically efficient and differentiation and integration can be readily applied.
In addition, a rational and objective procedure by applying the model has been proposed increasing the potential of the four-e model.
A comparison was carried out between theoretical and experimental load-deflection curves obtained for steel fibre reinforced concrete beams under three point bending.
It was found that the four-e model can satistifactorily describe the experimental load-deflection curves.
The principles applied for the comparison may possibly be applicable to FRC subjected to other types of loading.

Online publication: 2004-06-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13958