Details
Braiding is a way of intertwining yarns in such a way that no two yarns are twisted around one another. It is most commonly manufactured and used as a freestanding fabric with a constant braid angle for a given diameter. In composite manufacturing, tubular braids are usually expanded open diametrically, applied to a molding tool or core, snugged down (like a Chinese finger trap), embedded with resin and consolidated. Composite braids are very efficient at distributing loads because all the fibers are continuous and mechanically locked, thus distributing loads throughout the structure. Flat braids are used for reinforcement.
Braided structures are very impact resistant due to the efficient distribution of load. Since all the fibers are involved in the loading event, braid absorbs a great deal of energy. Braided structures are also fatigue resistant. The braided fibers are coiled into a helix just like a wire in a spring. However, the mechanical interlocking is significant. As a structure gets exposed to high fatigue cycles, cracks can spread through unidirectional prepreg lay ups. This spread is stopped at the intersections of reinforcing yarns. Braid is chosen for aircraft propellers, fan blade containment in commercial planes, and is ideal for O&P applications. Interlaminer shear properties improve significantly when braid is nested together with other braid, because the layers move together. It is unusual for cracks to form and spread between layers of braided reinforcement. Since braids are woven on the bias, they provide efficient reinforcement for parts exposed to twisting loads and are ideal for torque transfer components.
Braid is often used to lower the final composite costs. Biaxial braid easily expands to fit over molding tools or cores, accommodating straight or uniform molds as well as non-linear, irregular cross sections (i.e. the human leg and foot). Like pulling socks on your feet, braids slip onto tools and core molds with speed, ease and repeatability.
Braided structures are very impact resistant due to the efficient distribution of load. Since all the fibers are involved in the loading event, braid absorbs a great deal of energy. Braided structures are also fatigue resistant. The braided fibers are coiled into a helix just like a wire in a spring. However, the mechanical interlocking is significant. As a structure gets exposed to high fatigue cycles, cracks can spread through unidirectional prepreg lay ups. This spread is stopped at the intersections of reinforcing yarns. Braid is chosen for aircraft propellers, fan blade containment in commercial planes, and is ideal for O&P applications. Interlaminer shear properties improve significantly when braid is nested together with other braid, because the layers move together. It is unusual for cracks to form and spread between layers of braided reinforcement. Since braids are woven on the bias, they provide efficient reinforcement for parts exposed to twisting loads and are ideal for torque transfer components.
Braid is often used to lower the final composite costs. Biaxial braid easily expands to fit over molding tools or cores, accommodating straight or uniform molds as well as non-linear, irregular cross sections (i.e. the human leg and foot). Like pulling socks on your feet, braids slip onto tools and core molds with speed, ease and repeatability.
Additional Information
| Braid Weight | 6K |
|---|---|
| Length | 1' |
| Diameter | 6.00" |
| Thickness | 0.02" |
| Angle | 45” |
| Uses | Medical, Recreational, Industrial, Aerospace |