Dynamic strength testing of 3D-reinforced T-joints
Focus of this paper is to show the performance of reinforced CRFP T-joints under dynamic loading in a specifically designed testing facility. Static strength tests have been performed as a cross reference. Samples were built out of noncrimp fabrics (NCF) and for a part of them Carbon fibres were used to reinforce the Tjoints on the NCF-skin by means of a tufting-stitching head mounted on an industrial robot. These so-called preforms were then infiltrated with RTM 6 Epoxy resin and cured in an autoclave process. The specimens were tested both dynamically and statically. Results show an increase in the ultimate strength and in the energy absorption in case of the dynamically tested samples.