Uni-Directional Materials for Soft Armor & Hard Armor Applications
These new and revolutionary materials are produced using a patented production system that combines man made fibers in a Uni-Directional fiber-resin matrix to provide with a tension free matrix capable of absorbing more energy than similar woven products.
The UD material is produced in rolls of product, consisting of uni-directional fiber tapes cross-plied at 00/900.
UD fabrics work better than Woven fabrics !
Woven fabric system creates stress junctions where the fibers intertwine, these stress junctions reduce the overall ability of the fabric to absorb energy.
The Uni-Directional matrix is designed in such a way as to eliminate these stress junctions and to allow the UD fabric to absorb more energy thus making the UD fabric a more efficient system in absorbing the bullet kinetic energy.
Currently the UD fabrics are one of the most used fabrics world wide for the ballistic protection industry.
Applications: Light Weight Armor for
- Bullet proof vests
- Add-on inserts
- Ballistic protection helmets
- Vehicle armor panels
- Marine vessel armor panels
- Aircraft armor panels
FMS ballistic materials feature proprietary production technology, developed and produced by FMS. According to this method the fabrics combine thousands of Polyethylene or Aramid fibres laid down in a Uni-Directional (UD) arrangement and are held in place with a flexible thermoplastic matrix. Such structure is capable of absorbing and dispersing high impact energy, such as energy from rifle shots. Each fabric layer has four plies of UD-Polyethylene fibre tapes cross-plied at 0°/90°/0°/90°, which are fused into a composite structure under heat and pressure.
The bold advantage of the UD materials over their predecessors’ woven materials is increased ballistic protection by 10%-20%. Since the fibres are not crimped as they are in woven materials the energy of the bullet rapidly dissipates along the entire length of the fibre preserving the strength of the UHMW-PE fibre, which is held in the thermoplastic flexible resin matrix. The high modulus and high tenacity characteristics of the UHMW-PE fibres result in high-energy absorption capabilities, which are maximized during the ballistic impact, severely reducing the knockdown effect of the projectile.
In the last 20 years the UD technology has amazingly revolutionised soft and hard armour systems in bulletproof vests and in armouring vehicles so that nowadays the UD technology is widely accepted by law enforcement and military agencies around the world