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Landervik, M. och Svensson, K. (2003) Development of a finite element dummy model for improved lying-occupant safety evaluation. Göteborg : Chalmers University of Technology (Report EX - Chalmers Solid Mechanics, nr: 2002:6).
BibTeX
@mastersthesis{
Landervik2003,
author={Landervik, Mats and Svensson, Karl-Gustav},
title={Development of a finite element dummy model for improved lying-occupant safety evaluation},
abstract={The aim of this study was to develop an FE crash test dummy model to be used for safety
evaluation of lying truck-occupants. The model was to be included in an available model of a
truck sleeper section for simulations of a truck frontal impact using the Radioss finite element
solver.
The work began with a literature study in order to find out which kind of occupant model
would be useful for the purpose. An available FE model of the US SID, a crash test dummy
used as an occupant substitute in car side impact testing, was chosen to be a platform for
further development and adjustment to supine posture, i.e. lying position. The choice was
motivated by the resemblance in load cases experienced by a passenger lying in the bunk of a
truck during frontal impact and a seated passenger in car side impact, both being impacted
laterally. The primary adaptation of the dummy included development of a new, straight hip
part and adjustment of the lower-limb joint properties.
The simulations made implied a need for further tuning of the dummy model in order to make
it work properly for the loading case in question. Comparisons have been made between the
FE simulations and physical sled tests, having similar configuration, except for the occupant
substitute used. For the physical tests a pedestrian Hybrid III dummy was used, designed
primarily for frontal impact and therefore having different lateral responses. The main
difference is the thorax region of the dummies, where the Hybrid III is significantly stiffer
than the US SID, which in its turn is supposed to be stiffer than a human.
The work resulted in a well validated finite element dummy model, named Sleepy, having the
unique characteristics of supine posture, sensitivity to lateral loads, capability of measuring
side impact injury criteria and being useable for pedestrian simulation in a truck-to-pedestrian
impact.},
publisher={Institutionen för tillämpad mekanik, Materialteknik, Chalmers tekniska högskola},
place={Göteborg},
year={2003},
series={Report EX - Chalmers Solid Mechanics, no: 2002:6},
keywords={numerical simulations, occupant, dummy, lying occupant, mathematical dynamic model, impact biomechanics, safety countermeasure, finite element model.},
note={60},
}
RefWorks
RT Generic
SR Print
ID 18548
A1 Landervik, Mats
A1 Svensson, Karl-Gustav
T1 Development of a finite element dummy model for improved lying-occupant safety evaluation
YR 2003
AB The aim of this study was to develop an FE crash test dummy model to be used for safety
evaluation of lying truck-occupants. The model was to be included in an available model of a
truck sleeper section for simulations of a truck frontal impact using the Radioss finite element
solver.
The work began with a literature study in order to find out which kind of occupant model
would be useful for the purpose. An available FE model of the US SID, a crash test dummy
used as an occupant substitute in car side impact testing, was chosen to be a platform for
further development and adjustment to supine posture, i.e. lying position. The choice was
motivated by the resemblance in load cases experienced by a passenger lying in the bunk of a
truck during frontal impact and a seated passenger in car side impact, both being impacted
laterally. The primary adaptation of the dummy included development of a new, straight hip
part and adjustment of the lower-limb joint properties.
The simulations made implied a need for further tuning of the dummy model in order to make
it work properly for the loading case in question. Comparisons have been made between the
FE simulations and physical sled tests, having similar configuration, except for the occupant
substitute used. For the physical tests a pedestrian Hybrid III dummy was used, designed
primarily for frontal impact and therefore having different lateral responses. The main
difference is the thorax region of the dummies, where the Hybrid III is significantly stiffer
than the US SID, which in its turn is supposed to be stiffer than a human.
The work resulted in a well validated finite element dummy model, named Sleepy, having the
unique characteristics of supine posture, sensitivity to lateral loads, capability of measuring
side impact injury criteria and being useable for pedestrian simulation in a truck-to-pedestrian
impact.
PB Institutionen för tillämpad mekanik, Materialteknik, Chalmers tekniska högskola,PB Extern, UPL-instans,
T3 Report EX - Chalmers Solid Mechanics, no: 2002:6
LA eng
OL 30
