Fig. 1
From: Fat-tailed failure strength distributions and manufacturing defects in advanced composites
Microstructural defects in a carbon fiber reinforced composite bicycle frame. Optical micrographs of manufacturing defects that significantly alter strength distributions. Left: In-plane fiber waviness showing sinusoidal fiber misalignment. Top right: Combined defects showing the interaction between porosity (dark voids), fiber waviness, and resin-rich regions resulting from resin migration. Bottom right: Porosity defects appearing as dark voids between fiber tows4.
