Evaluation of WIAMan Technology Demonstrator Biofidelity Relative to Sub-Injurious PMHS Response in Simulated Under-body Blast Events

Pietsch, H.; Bosch, Kelly; Weyland, David R.; Spratley, E. Meade; Henderson, Kyvory; Salzar, Robert S.; Smith, Terrance Alan; Sagara, Brandon M.; Dooley, Christopher J.; Merkle, Andrew C.

doi:10.4271/2016-22-0009

Cited by 21 publications

(9 citation statements)

References 10 publications

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“…For the CCI-induced thoracoabdomen injuries, especially at a high loading rate, which frequently occurred in the military or civilian scenarios, the authors presumed that there may be two ways to transmit the vertical loading: one is the bone, and the other is the soft tissues, that is, thoracoabdomen muscles and organs, and the energy transmission may result in the injuries to the torso. Among the previously reported literature, most studies were done by carrying out experiments with a dummy or cadaver [ 16 , 17 , 20 – 22 ], in which the spine fractures have been validated from the published studies, while the response of the transmission along the soft tissue seldom was reported. In the present study, the CCI experiments were performed using adult minipigs at the different impact speeds, through which the thoracoabdomen injuries caused by the CCI and the response were studied.…”

Section: Discussionmentioning

confidence: 99%

“…As compared to the thoracoabdomen injuries induced by the horizontal impacts, such as anterior-posterior or lateral, remarkable discrepancies existed in injury mechanism, injury characteristics, and injury tolerance from the injuries by the CCI. In the past decades, the reported researches with regard to CCI-related injuries were done by retrospectively analyzing the injuries or deaths involved in the military or civilian scenarios [ 12 – 16 ] or performing the impact experiments with a dummy or cadaver [ 17 – 22 ]. The results have played key roles in understanding the injury mechanisms and evaluating the injury response for the CCI injuries, that is, fractures for the spine.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study of Thoracoabdominal Injuries Suffered from Caudocephalad Impacts Using Pigs

Guan

Liao

Xiang

et al. 2018

Applied Bionics and Biomechanics

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To know the caudocephalad impact- (CCI-) induced injuries more clearly, 21 adult minipigs, randomly divided into three groups: control group (n = 3), group I (n = 9), and group II (n = 9), were used to perform the CCI experiments on a modified deceleration sled. Configured impact velocity was 0 m/s in the control group, 8 m/s in group I, and 11 m/s in group II. The kinematics and mechanical responses of the subjects were recorded and investigated. The functional change examination and the autopsies were carried out, with which the injuries were evaluated from the Abbreviated Injury Scale (AIS) and the Injury Severity Score (ISS). The subjects in group I and group II experienced the caudocephalad loading at the peak pelvic accelerations of 108.92 ± 58.87 g and 139.13 g ± 78.54 g, with the peak abdomen pressures, 41.24 ± 16.89 kPa and 63.61 ± 65.83 kPa, respectively. The injuries of the spleen, lung, heart, and spine were detected frequently among the tested subjects. The maximal AIS (MAIS) of chest injuries was 4 in group I and 5 in group II, while both the MAIS of abdomen injuries in group I and group II were 5. The ISS in group II was 52.71 ± 6.13, significantly higher than in group I, 26.67 ± 5.02 (p < 0.05). The thoracoabdomen CCI injuries and the mechanical response addressed presently may be useful to conduct both the prevention studies against military or civilian injuries.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Study of Thoracoabdominal Injuries Suffered from Caudocephalad Impacts Using Pigs

Guan

Liao

Xiang

et al. 2018

Applied Bionics and Biomechanics

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“…Total CORA scores ranged from 0.7 to 0.8, which is analogous to other helmet models 5 or FE validation studies in general. 10,11,21,38,50 Scores for individual output traces ranged from 0.5 to 0.95. Head kinematics of the simulations generally followed the shape of the experimental traces, even with more complex bi-modal responses.…”

Section: Full Helmet Responsementioning

confidence: 99%

Development and Multi-Scale Validation of a Finite Element Football Helmet Model

Decker

Baker

et al. 2019

Ann Biomed Eng

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Head injury is a growing concern within contact sports, including American football. Computational tools such as finite element (FE) models provide an avenue for researchers to study, and potentially optimize safety tools, such as helmets. The goal of this study was to develop an accurate representative helmet model that could be used in further study of head injury to mitigate the toll of concussions in contact sports. An FE model of a Schutt Air XP Pro football helmet was developed through three major steps: geometry development, material characterization, and model validation. The fully assembled helmet model was fit onto a Hybrid III dummy head–neck model and National Operating Committee on Standards for Athletic Equipment (NOCSAE) head model and validated through a series of 67 representative impacts similar to those experienced by a football player. The kinematic and kinetic response of the model was compared to the response of the physical experiments, which included force, head linear acceleration, head angular velocity, and carriage acceleration. The outputs between the model and the physical tests were quantitatively evaluated using CORelation and Analysis (CORA), amounting to an overall averaged score of 0.76. The model described in this study has been extensively validated and can function as a building block for innovation in player safety.

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“…shear vs. normal loading). Overall scores typically emphasize the dominant signals Pietsch et al 2016).…”

Section: Resultsmentioning

confidence: 99%

Development and Full Body Validation of a 5th Percentile Female Finite Element Model

Davis

Koya

Schap

et al. 2016

SAE Technical Paper Series

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Evaluation of WIAMan Technology Demonstrator Biofidelity Relative to Sub-Injurious PMHS Response in Simulated Under-body Blast Events

Cited by 21 publications

References 10 publications

Experimental Study of Thoracoabdominal Injuries Suffered from Caudocephalad Impacts Using Pigs

Experimental Study of Thoracoabdominal Injuries Suffered from Caudocephalad Impacts Using Pigs

Development and Multi-Scale Validation of a Finite Element Football Helmet Model

Development and Full Body Validation of a 5th Percentile Female Finite Element Model

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