tender for ballistic helmet backface deformation

Home tender for ballistic helmet backface deformation

Balancing Ballistic and Back -Face Deformation in Helmets: The Role of Alternative Resins, Fibers, and Fiber Architecture in Mass-Efficient Head Protection . 26tth International Ballistics Symposium . Lionel Vargas -Gonzalez, Shawn M. Walsh, and Brian R. Scott U.S. Army Research Laboratory . Weapons and Materials Research Directorate

That is one of the most important factors for me when deciding on which company I go with for a ballistic helmet. Backface deformation is very critical when it comes to helmets. There's no point in worrying about stopping the ballistic threat if the blunt force trauma will be fatal from poor backface deformation performance.

A similar process can test ballistic helmets as well, not just vest plates. All our body armor tests well within NIJ standards, not even coming close to the 44mm limitation. In summary, backface deformation is a metric that tells us how much energy a projectile will deliver in the form of blunt force trauma against the plate in question.

To test backface deformation, a helmet with microlattice pads was placed on top of a dummy clayform head and shot with 9mm rounds at the crown, right side, left side, front, and back of the helmet. The average "backface signature" (how far the helmet deformed into the clayform) was only 4.41 mm, a 66.7% improvement over the 13.2 mm …

Modern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed "behind armor blunt trauma" (BABT). As helmets become lighter, the likelihood of larger helmet backface …

sion resistance. During a ballistic test, various projectiles are fired at the helmet in order to determine the penetration resistance and the helmet's backface deformation. To set up a ballistic test, the helmet is placed on U.S. Aberdeen Test Center (ATC) headform seen in …

Backface Deformation. Maybe you've heard of backface deformation regarding body armor. A helmet should be capable of providing the same type of ballistic protection that might result in blackface deformation (if it's a ballistic helmet). Backface deformation is how the armor is deformed as a result of being shot at.

The NeoSteel™ Helmet is not capable of significant backface deformation, and its stiff shell spreads the kinetic energy load of a projectile impact across the entire padding system. In contrast, with a lightweight composite helmet, backface deformation is a real concern, and is associated with injuries up to and including skull fracture.

Ballistic testing of combat helmets involves both the evaluation of resistance to penetration (RTP) and helmet backface deformation (BFD) as recorded in clay. With the exception of V 50 testing, RTP and BFD are measured on a metal headform ( Figure D-2 ) packed with Roma Plastilina #1 clay (as illustrated in Figure D-3 ), which ultimately ...

As helmets become lighter, the likelihood of larger helmet backface deformation under ballistic impact increases. To characterize the potential for BABT, seven postmortem human head/neck specimens wearing a ballistic protective helmet were exposed to nonperforating impact, using a 9 mm, full metal jacket, 124 grain bullet with velocities of 400 ...

Modern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed "behind armor blunt trauma" (BABT). As helmets become lighter, the likelihood of larger helmet backface deformation under …

HHV ATE® GEN2. The ATE GEN2 ballistic helmet offers a higher degree of protection across the normal testing standards of resistance to penetration, backface deformation, V50 and others than the OPS-CORE. This does come at the cost of approximately .4 extra pounds though.

– The backface deformation limit can be moved to 57mm, or even further beyond, for several reasons: (A) There are no accounts of deaths, and there are very few reported serious injuries, on account of body armor backface deformation. This is true even in real-world incidents where BFD seems to have been over 100mm.

FIGURE 7-1 Operating characteristic curves for Director, Operational Test and Evaluation, backface deformation (BFD) protocol for the two groups of shot locations: red dashed line corresponds to back and front and black solid line corresponds to right, left, and crown.Green and red lines show the acceptance probabilities for the two groups when P(BFD > B*), the …

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It was observed in van Hoof et al. [146] that the back-face deformation on a helmet induced by a projectile was greater than that on a flat panel fabricated from the same material. The curvature effect on the ballistic limit of a Kevlar helmet was investigated in Tham et al. [144], where the helmet was found to have a higher ballistic ...

To test backface deformation, a helmet with microlattice pads was placed on top of a dummy clayform head and shot with 9mm rounds at the crown, right side, left side, front, and back of the helmet. The average "backface signature" (how far the helmet deformed into the clayform) was only 4.41 mm, a 66.7% improvement over the 13.2 mm average ...