Human Shoulder Response to High Velocity Lateral Impact
| Autor: | Denis Lafont, Philippe Vezin, Frédéric Rongieras, Matthieu Lebarbé |
|---|---|
| Přispěvatelé: | Centre Européen d'Etudes de Sécurité et d'Analyse des Risques (CEESAR), Laboratoire de Biomécanique et Mécanique des Chocs (LBMC UMR T9406), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), DGA TT |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Male
Humeral Fractures NATO Time Factors Shoulders 020209 energy High velocity 02 engineering and technology HIGH VELOCITY Fractures Bone 0203 mechanical engineering Cadaver Deflection (engineering) 0202 electrical engineering electronic engineering information engineering medicine Humans Humerus Joint dislocation Acromion Aged Orthodontics Aged 80 and over LATERAL IMPACT COLLISION LATERALE PMHS Accidents Traffic [SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph] medicine.disease Clavicle Biomechanical Phenomena 020303 mechanical engineering & transports medicine.anatomical_structure POST MORTEM HUMAN SUBJECTS Humeral Head Female Stress Mechanical SHOULDER EPAULE ARMORED VEHICLE Geology |
| Zdroj: | Stapp Car Crash Journal Stapp Car Crash Journal, 2017, 61, pp. 27-51. ⟨10.4271/2017-22-0002⟩ |
| ISSN: | 1532-8546 |
| DOI: | 10.4271/2017-22-0002⟩ |
| Popis: | The armies of the North Atlantic Treaty Organization need a shoulder injury criterion for the EuroSID-2re dummy that must be reliable over a large range of loading conditions, from high velocity, short duration impacts (28 m/s - 3 ms) to low velocity long, duration impacts (4 m/s - 50 ms). In the literature, the human shoulder response to lateral impact was investigated at bounds of the loading condition spectrum as previously mentioned. For the low velocities, the injuries were mainly clavicle fractures and the maximum compression between the acromion and the sternum (Cmax) was proposed as an injury criterion. For the high velocities, the typical injury was humerus fractures, including a crushed humeral head. The present study investigates the human shoulder response at an intermediate loading condition (14 m/s - 9 ms). Six lateral shoulder impact tests have been performed with three Post Mortem Human Subjects using a rigid impactor. The duration of the impact was controlled by means of an aluminum honeycomb that decelerated the impactor during the impact. The shoulder external deflection (impactor-to-sternum) ranged between 40 to 64 mm and the applied forces ranged from 4.3 kN to 8 kN. Four shoulders out of six sustained AIS2 injuries. Two acromio-clavicular joint dislocations, one clavicle fracture, and one scapula fracture were observed. Though the shoulder force responses were closer to those induced by the high velocity, short duration impacts, the injury patterns resembled those observed for low velocity, long duration loading conditions. Furthermore, the estimated acromion-to-sternum deflection values were not inconsistent with the prediction of the shoulder injury risk curve of the literature. Despite the relatively high-velocity impact (14.3 m/s), the shoulder injury mechanism appeared to be similar to those observed in the automotive field. |
| Databáze: | OpenAIRE |
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