The influence of fibre orientation on the post-cracking tensile behaviour of steel fibre reinforced self-compacting concrete
Journal Title: Frattura ed Integrità Strutturale - Year 2015, Vol 9, Issue 31
Abstract
Adding fibres to concrete provides several advantages, especially in terms of controlling the crack opening width and propagation after the cracking onset. However, distribution and orientation of the fibres toward the active crack plane are significantly important in order to maximize its benefits. Therefore, in this study, the effect of the fibre distribution and orientation on the post-cracking tensile behaviour of the steel fibre reinforced self-compacting concrete (SFRSCC) specimens is investigated. For this purpose, several cores were extracted from distinct locations of a panel and were subjected to indirect (splitting) and direct tensile tests. The local stress-crack opening relationship (σ-w) was obtained by modelling the splitting tensile test under the finite element framework and by performing an Inverse Analysis (IA) procedure. Afterwards the σ-w law obtained from IA is then compared with the one ascertained directly from the uniaxial tensile tests. Finally, the fibre distribution/orientation parameters were determined adopting an image analysis technique.
Authors and Affiliations
A. Abrishambaf,, V. M. C. F. Cunha, J. A. O. Barros
Keywords
Related Articles
- EP ID EP94696
- DOI 10.3221/IGF-ESIS.31.04
- Views 96
- Downloads 0
Strength evaluation of structural hybrid bonded joints
The idea of “hybrid joints” arises from the need of joining together materials, producing a tough, stiff and lightweight joint. The core concept is: use two different joining techniques, with the aim to increase the stre...
Effective properties of a new auxetic triangular lattice:an analytical approach
In this article we propose a new auxetic periodic lattice with negative Poisson's ratio which tends tothe limit ν=-1 under particular conditions. We have studied its generation and kinematic, and we give a fulldesc...
Initiation and growth behavior of very-long microstructurally short fatigue cracks
The present paper describes a novel experimental technique recently presented that allows one to study interactions between the crack and microstructural barriers with an unprecedented level of ease and detail. The...
Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation
The main purpose of this paper is to examine the influence of the critical plane orientation on the estimated fatigue strength of metals under multiaxial loading. The algorithm employed to evaluate fatigue streng...
The interface between metallurgy and mechanics in material performance
[u][/u]This paper considers an important topic, and one that is often poorly understood or misinterpreted, but which is a determining factor in many aspects of the service performance of metals (and other materials). En...