NON-LOCAL DAMAGE ANALYSIS OF THREE-POINT BENDING TESTS ON SFRC NOTCHED BEAMS

摘要

A non-local damage model, together with a suitable constitutive model for steel-fiber reinforced concrete, is here employed for the numerical analysis of three point bending tests on beams of different sizes and made with concretes incorporating different fiber contents. Numerical computations are instrumental for assessing the capabilities of the proposed modelling tool for the analysis of a typical mode Ⅰ fracture problem in fiber reinforced cement based composites, highlighting its benefits and pointing out its limits, as well as for having a better insight into the reliability of the flexural test as a tool for the identification of material properties.