title: Evaluation of WIAMan Technology Demonstrator Biofidelity Relative to Sub-Injurious PMHS Response in Simulated Under-body Blast Events.
abstract: Three laboratory simulated sub-injurious under-body blast (UBB) test conditions were conducted with whole-body Post Mortem Human Surrogates (PMHS) and the Warrior Assessment Injury Manikin (WIAMan) Technology Demonstrator (TD) to establish and assess UBB biofidelity of the WIAMan TD. Test conditions included a rigid floor and rigid seat with independently varied pulses. On the floor, peak velocities of 4 m/s and 6 m/s were applied with a 5 ms time to peak (TTP). The seat peak velocity was 4 m/s with varied TTP of 5 and 10 ms. Tests were conducted with and without personal protective equipment (PPE). PMHS response data was compiled into preliminary biofidelity response corridors (BRCs), which served as evaluation metrics for the WIAMan TD. Each WIAMan TD response was evaluated against the PMHS preliminary BRC for the loading and unloading phase of the signal time history using Correlation Analysis (CORA) software to assign a numerical score between 0 and 1. A weighted average of all responses was calculated to determine body region and whole body biofidelity scores for each test condition. The WIAMan TD received UBB biofidelity scores of 0.62 in Condition A, 0.59 in Condition B, and 0.63 in Condition C, putting it in the fair category (0.44-0.65). Body region responses with scores below a rating of good (0.65-0.84) indicate potential focus areas for the next generation of the WIAMan design.
authors.affiliation: US Army Tank Automotive Research, Development, and Engineering Center.
authors.forename: Hollie A
authors.initials: HA
authors.lastname: Pietsch
authors.affiliation: US Army Tank Automotive Research, Development, and Engineering Center.
authors.forename: Kelly E
authors.initials: KE
authors.lastname: Bosch
authors.affiliation: US Army Tank Automotive Research, Development, and Engineering Center.
authors.forename: David R
authors.initials: DR
authors.lastname: Weyland
authors.affiliation: University of Virginia Center for Applied Biomechanics.
authors.forename: E Meade
authors.initials: EM
authors.lastname: Spratley
authors.affiliation: University of Virginia Center for Applied Biomechanics.
authors.forename: Kyvory A
authors.initials: KA
authors.lastname: Henderson
authors.affiliation: University of Virginia Center for Applied Biomechanics.
authors.forename: Robert S
authors.initials: RS
authors.lastname: Salzar
authors.affiliation: Dynamic Research, Inc.
authors.forename: Terrance A
authors.initials: TA
authors.lastname: Smith
authors.affiliation: Dynamic Research, Inc.
authors.forename: Brandon M
authors.initials: BM
authors.lastname: Sagara
authors.affiliation: Johns Hopkins University Applied Physics Laboratory.
authors.forename: Constantine K
authors.initials: CK
authors.lastname: Demetropoulos
authors.affiliation: Johns Hopkins University Applied Physics Laboratory.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Dooley
authors.affiliation: Johns Hopkins University Applied Physics Laboratory.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Merkle
mesh_terms: D000054:Acceleration; D001696:Biomechanical Phenomena; D002102:Cadaver; D005107:Explosions; D006801:Humans; D008297:Male; D008348:Manikins; D008954:Models, Biological