TY - JOUR
T1 - Finite element analysis of occupant head injuries
T2 - Parametric effects of the side curtain airbag deployment interaction with a dummy head in a side impact crash
AU - Deng, Xingqiao
AU - Potula, S.
AU - Grewal, H.
AU - Solanki, Kiran
AU - Tschopp, M. A.
AU - Horstemeyer, M. F.
N1 - Funding Information:
The authors would like to acknowledge the Center for Advanced Vehicular System (CAVS) at Mississippi University for support of this work. The authors would also like to thank the support of the Spring Sunshine Plan for the grant (grant no. 10202258 ), the Key Disciplinary of Mechanical Design and Theory of Xihua University (XZD0813-09-1), Talent Introduction of Xihua University, China (Grant No. Z1220217) and the Department of Energy National Energy Technology Laboratory under Award Numbers DE-FC26-02OR22910.
PY - 2013
Y1 - 2013
N2 - In this study, we investigated and assessed the dependence of dummy head injury mitigation on the side curtain airbag and occupant distance under a side impact of a Dodge Neon. Full-scale finite element vehicle simulations of a Dodge Neon with a side curtain airbag were performed to simulate the side impact. Owing to the wide range of parameters, an optimal matrix of finite element calculations was generated using the design method of experiments (DOE); the DOE method was performed to independently screen the finite element results and yield the desired parametric influences as outputs. Also, analysis of variance (ANOVA) techniques were used to analyze the finite element results data. The results clearly show that the influence of moving deformable barrier (MDB) strike velocity was the strongest influence parameter on both cases for the head injury criteria (HIC36) and the peak head acceleration, followed by the initial airbag inlet temperature. Interestingly, the initial airbag inlet temperature was only a ~30% smaller influence than the MDB velocity; also, the trigger time was a ~54% smaller influence than the MDB velocity when considering the peak head accelerations. Considering the wide range in MDB velocities used in this study, results of the study present an opportunity for design optimization using the different parameters to help mitigate occupant injury. As such, the initial airbag inlet temperature, the trigger time, and the airbag pressure should be incorporated into vehicular design process when optimizing for the head injury criteria.
AB - In this study, we investigated and assessed the dependence of dummy head injury mitigation on the side curtain airbag and occupant distance under a side impact of a Dodge Neon. Full-scale finite element vehicle simulations of a Dodge Neon with a side curtain airbag were performed to simulate the side impact. Owing to the wide range of parameters, an optimal matrix of finite element calculations was generated using the design method of experiments (DOE); the DOE method was performed to independently screen the finite element results and yield the desired parametric influences as outputs. Also, analysis of variance (ANOVA) techniques were used to analyze the finite element results data. The results clearly show that the influence of moving deformable barrier (MDB) strike velocity was the strongest influence parameter on both cases for the head injury criteria (HIC36) and the peak head acceleration, followed by the initial airbag inlet temperature. Interestingly, the initial airbag inlet temperature was only a ~30% smaller influence than the MDB velocity; also, the trigger time was a ~54% smaller influence than the MDB velocity when considering the peak head accelerations. Considering the wide range in MDB velocities used in this study, results of the study present an opportunity for design optimization using the different parameters to help mitigate occupant injury. As such, the initial airbag inlet temperature, the trigger time, and the airbag pressure should be incorporated into vehicular design process when optimizing for the head injury criteria.
KW - ANOVA
KW - Crash
KW - Design of experiments
KW - Finite element analysis
KW - Head injury criterion
KW - Side curtain airbag
KW - Side impact
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U2 - 10.1016/j.aap.2013.03.016
DO - 10.1016/j.aap.2013.03.016
M3 - Article
C2 - 23567214
AN - SCOPUS:84876104179
SN - 0001-4575
VL - 55
SP - 232
EP - 241
JO - Accident Analysis and Prevention
JF - Accident Analysis and Prevention
ER -