Virtual Characterization of composites with Lamination Defects for wind turbine spar cap
MUKUNDAN SRINIVASAN (BERGICHE UNIVERSITAT WUPPERTAL)
Computational Materials Design via Multi-scale Modeling
Wed 1:30 - 2:50
Barus-Holley 190
The current characterization of composite materials (glass and carbon fibre reinforced plastics) takes into account of the mechanical behavior only at ply level and therefore current material database do not consider the manufacturing process of lamination and its effects on mechanical properties. If performed manually and above all without cure and consolidation in an autoclave, the stacking process can severely reduce the expected mechanical properties of the components by inducing the growth of several types of lamination defects like delamination, wrinkles, porosity and others. The objective is to characterize the mechanical static, elastic and failure responses of hybrid carbon/glass fibre laminates containing manufacturing induced wrinkles of several sizes using micromechanical and mesomechanical computational virtual testing.