Seated Posture of Vehicle Occupants

Robbins, D H; Schneider, Lawrence W.; Snyder, Richard G.; Pflug, M A; Haffner, Mark P.

doi:10.4271/831617

Cited by 34 publications

(10 citation statements)

References 14 publications

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“…42 The geometric data reconstructed from the medical images of a mid-size male volunteer used for this model is distinct from other geometry data sets. Previous lower limb models were developed based on reconstructed geometry of individuals with different dimensions from the 50th percentile male 4,47 or used commercial databases which contains only the exterior surfaces of bones.…”

Section: Discussionmentioning

confidence: 99%

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A Finite Element Model of the Lower Limb for Simulating Automotive Impacts

2012

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A finite element (FE) model of a vehicle occupant's lower limb was developed in this study to improve understanding of injury mechanisms during traffic crashes. The reconstructed geometry of a male volunteer close to the anthropometry of a 50th percentile male was meshed using mostly hexahedral and quadrilateral elements to enhance the computational efficiency of the model. The material and structural properties were selected based on a synthesis of current knowledge of the constitutive models for each tissue. The models of the femur, tibia, and leg were validated against Post-Mortem Human Surrogate (PMHS) data in various loading conditions which generates the bone fractures observed in traffic accidents. The model was then used to investigate the tolerances of femur and tibia under axial compression and bending. It was shown that the bending moment induced by the axial force reduced the bone tolerance significantly more under posterior-anterior (PA) loading than under anterior-posterior (AP) loading. It is believed that the current lower limb models could be used in defining advanced injury criteria of the lower limb and in various applications as an alternative to physical testing, which may require complex setups and high cost.

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Section: Discussionmentioning

confidence: 99%

“…The knee flexion angle of the scanned LEX was about 120°to mimic the seating posture of the occupant LEX in a vehicle. 42 The geometries of the bony structures and soft tissues of the volunteer LEX region were reconstructed 16 using the CT and MRI scanned images, respectively.…”

Section: Development Of the Thigh-knee-leg Fe Modelmentioning

confidence: 99%

A Finite Element Model of the Lower Limb for Simulating Automotive Impacts

2012

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“…Although the chosen system is consistent, lack of full quantification of CG and OC locations, render comparisons between studies difficult. This has led investigators resort to a ''mix and match'' approach for determining head properties (Beier et al, 1980;Plaga et al, 2005;Robbins et al, 1983;Walker et al, 1973).…”

Section: Idmentioning

confidence: 98%

Physical properties of the human head: Mass, center of gravity and moment of inertia

Yoganandan

Pintar

Zhang

et al. 2009

Journal of Biomechanics

174

100

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“…Geometric data for the seated subject in driving posture (Robbins et al, 1983) was used as a reference to derive the global position and dimension of head and neck. The head represents a Hybrid III dummy geometry.…”

Section: Geometry Of the Modelmentioning

confidence: 99%

Finite element model of the human neck during omni-directional impacts

Fréchède

Bertholon

Coz

et al. 2005

Revue Européenne des Éléments Finis

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A 3D Finite Element model was developed under the FE code Radioss, to explore the mechanisms of injury occurring during various kinds of impacts. It represents the head and neck of a 50th percentile human seated in a reference position. It includes a volumic representation of the head, cervical vertebras, intervertebral discs, muscles and soft tissues. Contacts are taken into account between articular facets as well as between spinous processes. The kinematical behaviour of the model was evaluated omni-directionally for various impacts, using published experimental results of head and vertebral 3D motions and accelerations, obtained both on cadavers and volunteers. The model's ability to reproduce injury mechanisms was also assessed; its behaviour was compared to available experimental injury assessment data, therefore allowing to define local injury criteria. RÉSUMÉ. Un modèle éléments-finis 3D du cou humain a été développé sous le code EF Radioss afin d'explorer les mécanismes lésionnels dus à divers types de chocs. Il représente le complexe tête/cou d'un être humain du 50 e percentile assis en position de référence. Il inclut une modélisation volumique de la tête, des vertèbres cervicales, des disques intervertébraux, des muscles et tissus mous du cou, ainsi qu'une prise en compte des contacts entre les facettes articulaires et les processus épineux. Le comportement cinématique du modèle a été évalué de manière omni-directionnelle pour différents chocs. A cet effet, des résultats expérimentaux obtenus sur volontaires ou cadavres et disponibles dans la littérature ont été utilisés. Ils concernent la cinématique de la tête ou des vertèbres. La capacité du modèle à reproduire les mécanismes lésionnels a également été évaluée et comparée à des données lésionnelles expérimentales afin de définir des tolérances lésionnelles locales.

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Seated Posture of Vehicle Occupants

Cited by 34 publications

References 14 publications

A Finite Element Model of the Lower Limb for Simulating Automotive Impacts

A Finite Element Model of the Lower Limb for Simulating Automotive Impacts

Physical properties of the human head: Mass, center of gravity and moment of inertia

Finite element model of the human neck during omni-directional impacts

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