title: Development of a geometrically accurate and adaptable finite element head model for impact simulation: the Naval Research Laboratory-Simpleware Head Model.
abstract: This study demonstrates a novel model generation methodology that addresses several limitations of conventional finite element head models (FEHM). By operating chiefly in image space, new structures can be incorporated or merged, and the mesh either decimated or refined both locally and globally. This methodology is employed in the development of a highly bio-fidelic FEHM from high-resolution scan data. The model is adaptable and presented here in a form optimised for impact and blast simulations. The accuracy and feasibility of the model are successfully demonstrated against a widely used experimental benchmark in impact loading and through the investigation of potential brain injury under blast overpressure loading.
authors.affiliation: a Simpleware Ltd. , Bradninch Hall, Castle Street, Exeter EX4 3PL , UK.
authors.forename: R T
authors.initials: RT
authors.lastname: Cotton
authors.affiliation: a Simpleware Ltd. , Bradninch Hall, Castle Street, Exeter EX4 3PL , UK.
authors.forename: C W
authors.initials: CW
authors.lastname: Pearce
authors.affiliation: b College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter , Devon , UK.
authors.forename: P G
authors.initials: PG
authors.lastname: Young
authors.affiliation: c MCET Department , Leidos Corporation , Arlington , Virginia , USA.
authors.forename: N
authors.initials: N
authors.lastname: Kota
authors.affiliation: d US Naval Research Laboratory , Multifunctional Materials Branch , Washington, DC , USA.
authors.forename: A C
authors.initials: AC
authors.lastname: Leung
authors.affiliation: d US Naval Research Laboratory , Multifunctional Materials Branch , Washington, DC , USA.
authors.forename: A
authors.initials: A
authors.lastname: Bagchi
authors.affiliation: d US Naval Research Laboratory , Multifunctional Materials Branch , Washington, DC , USA.
authors.forename: S M
authors.initials: SM
authors.lastname: Qidwai
mesh_terms: D001753:Blast Injuries / Q000473:pathology*; D001930:Brain Injuries / Q000473:pathology; D003198:Computer Simulation; D020342:Finite Element Analysis; D006257:Head; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008954:Models, Biological; D011312:Pressure
keywords: blast; finite element; head impact; meshing; simulation; traumatic brain injury