Spall Liners are a great method to protect against damage caused by armor plate spall. This is a combustible cloud that forms when armor hits an object at a high velocity. The material behind the armor plate is made of aramid fiber reinforced plastic, that is often called a panel or plate. The lining prevents spall damage by increasing the thickness of the armor and increasing its resistance to the effects of impact.
The stress waves created by impact on armor plates apply tension and compressive loads. The intensity of the impact wave or stress pulse determines whether or the plate will break. When the stress energy reaches the threshold of criticality, it is released as the kinetic energy. What are Spall Liners are released from the rear surface at a rapid rate. The armor plate’s structure is compromised.
Monolithic and composite materials are utilized to enhance active spall suppression armor. The new material carries the same high strength as metal, but uses a composite material. The new material can be used as a stand-alone or in combination with another layer to protect against the effects of armor spall. Metal powder can be added to the primary material. This will increase the armor’s security. The composite material used in the present invention is lightweight and is abrasive. The lightweight backing is also low in energy particles and has lower concentration capabilities.
Cross-referenced applications were originally designed to use materials with an impedance equal or greater than the armor plate’s. This concept has evolved to include materials that have a low impedance which can prevent spall fractures. A particle can adhere to armor if it reaches a certain impedance. The armor could fail in the event that the force of impact is too high.
The manufacturing of a spall liner is similar to assembling a jigsaw puzzle. If the pieces don’t match the puzzle, they won’t fit. Contrary to a jigsaw, the process of making a spall liner starts with a preliminary design analysis. It establishes the relationship between the system weights and design variables. Using information from spall strength as well as jet penetration stress manufacturers can determine the properties of the material.
A stand-off spall liner has to have sufficient space for mounting hardware and occupants. However, light vehicles are constrained by their small space. A stand-off spall liners would not only limit space in the vehicle but also hinder its overall effectiveness. Light vehicle buyers can benefit from a light spall liner, which is space-saving and safeguards against collision. In addition to protecting passengers, spall liner can also decrease the risk of a vehicle becoming damaged.