title: Examination of the protective roles of helmet/faceshield and directionality for human head under blast waves.
abstract: A parametric study was conducted to delineate the efficacy of personal protective equipment (PPE), such as ballistic faceshields and advanced combat helmets, in the case of a blast. The propagations of blast waves and their interactions with an unprotected head, a helmeted one, and a fully protected finite element head model (FEHM) were modeled. The biomechanical parameters of the brain were recorded when the FEHM was exposed to shockwaves from the front, back, top, and bottom. The directional dependent tissue response of the brain and the variable efficiency of PPE with respect to the blast orientation were two major results of this study.
authors.affiliation: a Mechanical Engineering Department , North Dakota State University , Fargo , ND 58108-6050 , USA.
authors.forename: Hesam
authors.initials: H
authors.lastname: Sarvghad-Moghaddam
authors.forename: Mehdi Salimi
authors.initials: MS
authors.lastname: Jazi
authors.forename: Asghar
authors.initials: A
authors.lastname: Rezaei
authors.forename: Ghodrat
authors.initials: G
authors.lastname: Karami
authors.forename: Mariusz
authors.initials: M
authors.lastname: Ziejewski
mesh_terms: D001696:Biomechanical Phenomena; D001753:Blast Injuries / Q000503:physiopathology / Q000517:prevention & control*; D001921:Brain / Q000503:physiopathology; D001930:Brain Injuries / Q000503:physiopathology / Q000517:prevention & control; D003198:Computer Simulation; D004548:Elasticity; D020342:Finite Element Analysis; D006257:Head / Q000503:physiopathology*; D006260:Head Protective Devices; D006801:Humans; D008962:Models, Theoretical; D011312:Pressure; D033081:Shear Strength; D013997:Time Factors; D014783:Viscosity
keywords: blast traumatic brain injury (bTBI); finite elements (FEs); fluid–structure interaction (FSI).; intracranial pressure (ICP); shear stress