Two types of FE analysis are used in this paper and compared experiments from a practical point of view, i.e. in terms of information obtained by each method. The first one is based on a continuous approach. Considering SFRC, a…
Two types of FE analysis are used in this paper and compared experiments from a practical point of view, i.e. in terms of information obtained by each method. The first one is based on a continuous approach. Considering SFRC, a plastic model allows to model the tensile behaviour after cracking, with a constant plateau of the level of the 'residual' tensile strength. The second one is based on a discrete model, taking into account the heterogeneity of the matter by a probabilistic approach. The model describes cracks as geometrical discontinuities using special interface elements. This approach is adapted to SFRC using the results of uniaxial tensile tests: a force depending on the normal displacement acts between the interface elements. The two approaches appear to be complementary. 1169 2 It that steel lengths mm and ·'l..UU.J ...... ..., •. ..., .. l::.A"-'•'-U-"-'A than 0.4 mm, and currently use proportions, less than 1.5 % in mainly act after the cracking of concrete Rossi et al. (1987). modelling it is then non linear domain which is important the of SFRC structures.