Mechanics of SFRC under tension, part II: experimental validation

Abstract

This is the second of a two-part paper involving a fundamental study of the tensile stress–strain relationship of short-fibre-reinforced concrete under tension. The validation of the analytical model developed in the first part is presented here. The tensile stress–strain results obtained from the theoretical model are compared with the results obtained from the experimental investigations for a wide range of fibre lengths, diameters and volume fractions. The results of the present model are also compared with the tensile stress–strain results obtained from the existing literature. The tensile stress–strain results obtained from the proposed theoretical predictions are found to be in good agreement with the experimental results. The predictability of the analytical approach is also scrutinised for peak load, load at ultimate deformation, ductility and so on. The analytical results show a good conformity, with respect to peak load, toughness and the natures of the ascending as well as descending branches.