Blunt Impact Performance Characteristics of the Advanced Combat Helmet and the Paratrooper and Infantry Personnel Armor System for Ground Troops Helmet

Impact response of US Army and National Football League helmet pad systems

“…Plasticity is a damping mechanism, so we would expect larger peak accelerations in a subsequent impact at 14.14 f/s, which is consistent with experimental data (see Fig. 12 in [2]). …”

“…As an additional check on the simulation methods, the Team Wendy pads in the simulation were replaced with Oregon Aero pads, which are much more compliant (see Appendix B) and the simulations were repeated. Table 1 compares crown impact peak accelerations from the simulations and experimental data [2]. Complete acceleration-time data for the Oregon Aero pads were not available in the USAARL report, so only peak acceleration data are compared.…”

“…We simulated crown impact experiments performed by USAARL [2], [3] and compared our simulations to the USAARL data [4], to establish the credibility of our computational methods. Figure 2 shows the typical experimental configuration [2], which consists of a magnesium alloy headform that is secured by a tightly cinched chinstrap to an Advanced Combat Helmet [ACH] (with pads).…”

“…Figure 2 shows the typical experimental configuration [2], which consists of a magnesium alloy headform that is secured by a tightly cinched chinstrap to an Advanced Combat Helmet [ACH] (with pads).…”

Contemporary Personal Ballistic Protection (PBP)

“…There were also developments in helmet retention systems. The MICH, ACH [54] and LWH helmets switched to a multi-pad and four-point retention system (Figure 20) that had better impact protection while providing increased comfort. The next major advance in helmet technology resulted from a combination of advances in materials and manufacturing processes.…”