Fig. 24 “Chop marks” on the fracture surface of the glass fibers in a glass/polyimide composite tested as a notched four-point bend specimen that failed in compression. 1800× More

Fig. 1 The strength of glass fibers embedded in polymer matrices, in terms of fiber strains More

Fig. 8 Glass fibers in polypropylene. (a) Without coupling agent. (b) With coupling agent. In (a) the fibers are clean, with no resin adhesion. In (b) the resin coats and attaches to the fiber. More

Fig. 22 Radial marks on the surfaces of glass fibers indicative of tensile failure in a glass/polyimide composite following failure of a notched four-point bend specimen. 3000× More

Fig. 8 Long-term behavior of plastic cage made of PA66-GF25 and glass fibers under varying temperatures and different oils. Source: Ref 1 More

Fig. 2 Composite materials made from different types of fibers. (a) Woven glass fiber fabric composite revealing a multiphase-matrix morphology. Ultrathin section, transmitted-light phase contrast, 20× objective. (b) Kevlar (E.I. du Pont de Nemours and Company) fabric composite cross section More

Fig. 7 Normalized moduli versus fiber orientation for a glass-fiber/epoxy-resin composite (a) and a boron-fiber/epoxy-resin composite (b). The normalized Young's modulus, shear modulus, Poissons' ratio, and major shear coupling factor are illustrated for loads applied at different angles More

Fig. 6 S-N curves for (a) various AS4-epoxy laminates and (b) glass-fiber polymer laminates at various ply orientations. Source: (a) Engineered Materials Handbook, Vol 1, Composites, ASM International, 1987, p 438 and (b) C. Osgood, Fatigue Design, 2nd ed., 1982, Pergamon Press, p 530 More

Fig. 11 Lamina-level failure model for glass-fiber-reinforced laminates More

Fig. 7 Voids found in a glass fiber composite cross section due to solvents from manufacturing. Bright-field illumination, 10× objective More

Fig. 8 Residual curing agent particles in a thermoset-matrix glass fiber composite. Reflected-light phase contrast, 40× objective More

Fig. 2 Glass fiber honeycomb composite part submitted for failure analysis. The coordinates were established with a tape measure and a felt-tip permanent-ink marker. The starting point is the lower left corner, numbering “1” to “15” vertically (next to holes) and “A” through “E” horizontally More