3346 - APPLICATION OF THE VARIATIONAL MULTISCALE METHOD TO DAMAGE OF COMPOSITES

This paper is devoted to the mechanical and numerical modelling of fiber reinforced concrete structures, taking into account the nonlinear material behaviour of the components and their interaction on the microlevel. Formulations for simulating a structure’s response with full resolution of the material heterogeneities, which may be called Direct Numerical Simulations (DNS), are prohibitive due to the problem size. This obstacle is overcome by applying the Variational Multiscale Method (VMM) to bridge the scales via a variational projection between the behaviour on the scale of the material heterogeneity and the macroscopic structural behaviour.