Multiscale model for predicting damage evolution in composites due to impact loading

Fibre Break Failure Processes in Unidirectional Composites. Part 1: Failure and Critical Damage State Induced by Increasing Tensile Loading

“…As mentioned above it can therefore be understood that carrying out such calculations for all Gauss points in the structure would involve an unacceptable calculation time. A multiscale process [26,54,60] of a simplified F E 2 type has then been used to carry out the simulations. The process is defined as simplified as the finite element analysis is only used for the macromechanical analysis whereas the micromechanical analysis makes use of a smoothing of the load transfer coefficient between fibres (Eq.…”

“…The degradation of a composite made up of long or continuous fibres in which the loads are supported primarily by the fibres is essentially controlled by the breakage of the fibres. It was therefore decided to model this phenomenon by using a multi-scale approach of the type F E 2 [26,54,60]. The choice of such an approach was motivated by a desire to capture, as far as was possible, the physical mechanisms at the origin of fibre failure.…”

Microscopic damage mechanisms of fibre reinforced composite laminates subjected to low velocity impact

“…However, all these studies were aimed at the quasi-static damage simulation of composites, thus are not applicable to the simulation of low velocity impact. Souza et al [23] presented a multiscale model for predicting damage evolution in composites due to impact loading. Yet, it was not a concurrent multiscale model as information transfer was required between the global and local scale.…”

A model for predicting the multiscale crack growth due to an impact in heterogeneous viscoelastic solids

“…This approach is especially advantageous in problems with evolving microstructure due to the formation and growth of cracks, since the evolution of the microstructure is necessarily both space-and time-dependent. A more detailed description of multiscale models can be found in [7][8][9][10][11][12].…”