Revealing the Effect of Skull Deformation on Intracranial Pressure Variation During the Direct Interaction Between Blast Wave and Surrogate Head

Du, Z.; Li, Zhijie; Wang, Peng; Wang, Xinghao; Zhang, Jiarui; Zhuang, Zhuo; Liu, Zhanli

doi:10.1007/s10439-022-02982-5

Cited by 8 publications

(1 citation statement)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the classical experiments, Nahum et al (1977) measured the pressures in the He called these pressures 'intracranial pressures (ICPs)' as they were measured inside the cranium. Since then, this connotation has been routinely used for the measurement of brain pressure in the head injury biomechanics community (e.g., (Nahum et al, 1977;Liu et al, 2012;Skotak et al, 2013;Freitas et al, 2014;Du et al, 2022;Li et al, 2023b),), to the point it has become a standard terminology. Further, the ICP sensors were mounted in the anterior and posterior locations (Figure 4).…”

Section: Methodsmentioning

confidence: 99%

Mechanical analysis of helmeted headforms under ballistic impact with implications in performance evaluation of ballistic helmets

Harmukh,

Singh,

Kumar

et al. 2023

Front. Mech. Eng.

View full text Add to dashboard Cite

Behind helmet blunt trauma is a significant health concern in modern warfare. The ballistic response of the human head under ballistic impact is highly sought. Towards this end, we conducted ballistic experiments on three different headforms. The following headforms were considered: a) National Institute of Justice based rigid headform, b) Hybrid-III based flexible headform, and c) head model based headform. Headforms b, c were assembled with the Hybrid-III neck. An advanced combat helmet was fitted to the headforms. Helmet-head assembly was subjected to a 9 mm × 19 mm full metal jacket projectile having velocities of 430 ± 15 m/s. The response of the head surrogate in the front, back, side, and crown orientations was studied. Back face deformation (BFD), head kinematics, and intracranial pressures in headforms were measured. In addition, equivalent stress and maximum principal strain in the brain were obtained using concurrent finite element simulations. Results suggest that both local (i.e., due to the localized crushing of the helmet) and global (i.e., due to the bulk motion of the helmet-head parenchyma) responses were dominant under investigated ballistic impacts. Further, the type of the headform affected the biomechanical response. As compared to the rigid headform, a statistically significant increase in head kinematics was observed with the flexible headforms; changes in BFD were statistically insignificant. The orientation dependent responses have been observed. Overall, these results provide novel insights regarding the ballistic response of the headforms with the combat helmet and underscore critical considerations during the ballistic evaluation of helmets.

show abstract

Section: Methodsmentioning

confidence: 99%

Mechanical analysis of helmeted headforms under ballistic impact with implications in performance evaluation of ballistic helmets

Harmukh,

Singh,

Kumar

et al. 2023

Front. Mech. Eng.

View full text Add to dashboard Cite

show abstract

Bilayer surrogate brain response under various blast loading conditions

Norris,

Arnold,

Wilkes

et al. 2024

Shock Waves

View full text Add to dashboard Cite

Variations in the experimental constraints applied within blast simulations can result in dramatically different measured biomechanical responses. Ultimately, this limits the comparison of data between research groups and leads to further inquisitions about the “correct” biomechanics experienced in blast environments. A novel bilayer surrogate brain was exposed to blast waves generated from advanced blast simulators (ABSs) where detonation source, boundary conditions, and ABS geometry were varied. The surrogate was comprised of Sylgard 527 (1:1) as a gray matter simulant and Sylgard 527 (1:1.2) as a white matter simulant. The intracranial pressure response of this surrogate brain was measured in the frontal region under primary blast loading while suspended in a polyurethane spherical shell with 5 mm thickness and filled with water to represent the cerebrospinal fluid. Outcomes of this work discuss considerations for future experimental designs and aim to address sources of variability confounding interpretation of biomechanical responses.

show abstract

Investigation into helmet–head shock wave interactions at low overpressures through free-field blasts and schlieren imagery

Thomas,

Johnson

2024

Shock Waves

View full text Add to dashboard Cite

Revealing the Effect of Skull Deformation on Intracranial Pressure Variation During the Direct Interaction Between Blast Wave and Surrogate Head

Cited by 8 publications

References 56 publications

Mechanical analysis of helmeted headforms under ballistic impact with implications in performance evaluation of ballistic helmets

Mechanical analysis of helmeted headforms under ballistic impact with implications in performance evaluation of ballistic helmets

Bilayer surrogate brain response under various blast loading conditions

Investigation into helmet–head shock wave interactions at low overpressures through free-field blasts and schlieren imagery

Contact Info

Product

Resources

About