In research happy to be in the middle of it

COMPOSYST provides VAP membrane for research

„Within the DFP (Dry Fibre Placement) process carbon fiber rovings are spread, bound and then auto-matically processed into dry textile preforms using 2D and 3D laying systems. The aim was to automate existing hand lay-up processes through simplicity and robustness, making it easy to use DFP technology. Process reliability, low waste and flexible production could be demonstrated. In this publication, influences of the process parameters, 2 mm wide gaps and the percentage of 90° layers in the laminate, are investigated with regard to the mechanical properties, permeability and infusion times in the preform z-direction (thickness). The influences on stiffness and strength, for tension and bending, are compared. Comprehensive unidirectional mechanical laminate properties were also determined for a reference configuration, without gaps, which can be used for computational laminate design. A method for determining infusion times as a function of laminate thickness, ply structure, 2 mm wide gaps is demonstrated and verified using vacuum assisted process (VAP) infusion tests.“

DRY FIBRE PLACEMENT – INFLUENCE OF PROCESS PARAMETERS ON MECHANICAL LAMINATE PROPERTIES AND INFUSION BEHAVIOUR
B. Grisin, S. Carosella und P. Middendorf

27. Stuttgarter Kunststoffkolloquium 2021

Posts
Menu