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Perforated Mars® 650
Mars® 650 is a ultra-high-hard (typical 650 HBW) protection steel offering uncompromising ballistic resistance performance, for use as add-on armor.
In the perforated version, holes are evenly distributed within the surface to interact with the diameter of the incoming threat. The use of specific perforation process leads to very good flatness, absence of HAZ and low residual stress.
Perforated Mars® 650 is intended to be used as add-on armor at some stand-off distance from platform base armor.
Incoming AP projectiles tends to fracture due to bending stress induced by impacts on holes edges or into the ultra-high hard material in-between. If they are not fractured, projectiles are at least diverted from their incident trajectory which thus drastically reduce their residual penetration capability into base armor.
The holes reduce the areal density of armor plate and also limit possible cracks propagation conferring to Perforated Mars® 650 an exceptional multi-hits capability.
It results to a mass efficiency close the one of ceramic/composites solutions, with a much more better multi-hit capability and easier integration.
Perforated Mars® 650 is also used as ventilation grille (engine, cabin).