46
4 Mechanical characterization on constituent level
Figure 35 Implemented boundary conditions of the simulation models [See17]
Figure 36 Implemented unit cell geometries based on regular hexagons [See17]
Consideration of imperfections
Detailed meso scale models can be combined with various modelling approaches for
considering imperfections of cellular sandwich cores. It can be distinguished between
local geometric and material imperfections and global imperfections regarding the overall hexagon grid. The former can be implemented by randomly distorting all cell wall