ABSTRACT
ABSTRACT: For design, engineers require a simple yet reliable approach that explains and models with sufficient accuracy the behaviour under load of fibre reinforced concrete. In this paper, the Variable Engagement Model II is developed to describe the behaviour of randomly orientated steel-fibre reinforced composites subject to mode II (shear) fracture. The model is developed by integrating the behaviour of single, randomly oriented, fibres over 3D space and, based on quantifiable material and mix parameters, is shown to be capable of capturing the stress versus crack sliding displacement response for steel-fibre reinforced composites in both the pre-and post-peak stages.
