Armoring of Automobiles

For reasons of personal security, today more and more cars are armored with textiles or textile-armored and reinforced composite materials. 

Basically two different protection categories are used for the armoring of cars  

The ground blasting mat is built up in five layers of a textile fabric in a mostly (cross-)twill weave made of aramid filament yarns (without addition of a matrix material) sewn with each other in one or two directions. The thickness is 3.9 mm with a basis weight of 3.2 kg/m  

The ground blasting mat has to withstand a blasting of two hand grenades per m. The testing conditions are as follows  

For the production of interleaf-repressing materials, textile fabrics made of aramid filament yarns are alternately arranged in layers with intermediate layers of thermoplastics or elastomers. In a next step, they are pressed into a composite. In doing so, it is not necessary to obtain a homogeneous mixing of fiber and matrix material as is necessary with fiber-reinforced materials. Quite the contrary is desired the aim is the reduction of energy. 

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