One of the leading causes of death in automotive crashes is traumatic rupture of the aorta (TRA) or blunt aortic injury (BAI). The risk of fatality is high if an aortic injury is not detected and treated promptly. The objective of this study is to investigate TRA mechanisms using finite element (FE) simulations of reconstructed real-world accidents involving aortic injury. For this application, a case was obtained from the William Lehman Injury Research Center (WLIRC), which is a Crash Injury Research and Engineering Network (CIREN) center. In this selected crash, the case vehicle was struck on the left side with a Principal Direction of Force (PDoF) of 290 degrees. The side structure of the case vehicle crushed a maximum of 0.33 m. The total delta-V was estimated to be 6.2 m/s. The occupant, a 62-year old mid-sized male, was fatally injured. The occupant sustained multiple rib fractures, laceration of the right ventricle, and TRA, among other injuries.The method proposed in this study allowed simulation of a real-world accident. The method involved two phases. First, the car-to-car interaction was simulated using car FE models. The FE car models were obtained from the National Crash Analysis Center (NCAC) public model archives, and were modified to represent the actual crash vehicles. The simulation was validated against intrusion and crush data.Second, the interaction between the occupant and the interior of the automobile was simulated using input as the results of the first simulation. The occupant was modeled using a whole-body human FE model developed at Wayne State University. The model was developed to simulate the human body response to impact and includes descriptions of all major thoracic and abdominal organs, major blood vessels including the aorta, and all major bony structures. The model represents a mid-sized male. The aortic stress patterns observed in the FE simulation were compared to the autopsy findings.It is hoped that the predicted internal kinematics of the thorax can help to better understand the injury mechanism of TRA. Results can also be used to design future experimental studies aiming at producing TRA in cadavers.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Analysis of a Real-World Crash Using Finite Element Modeling to Examine Traumatic Rupture of the Aorta


    Additional title:

    Sae Technical Papers



    Conference:

    SAE 2005 World Congress & Exhibition ; 2005



    Publication date :

    2005-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    Analysis of a real-world crash using finite element modeling to examine traumatic rupture of the aorta

    Shah,C.S. / Maddali,M. / Mungikar,S.A. et al. | Automotive engineering | 2005


    2005-01-1293 Analysis of a Real-World Crash Using Finite Element Modeling to Examine Traumatic Rupture of the Aorta

    Shah, C. S. / Maddali, M. / Mungikar, S. A. et al. | British Library Conference Proceedings | 2005


    An analysis of traumatic rupture of the aorta in side impact sled tests

    Cavanaugh,J.M. / Koh,S.W. / Kaledhonkar,S.L. et al. | Automotive engineering | 2005


    Study of Potential Mechanisms of Traumatic Rupture of the Aorta Using InSitu Experiments

    Shah , Chirag S. / Van Ee , Chris A. / Kopacz , James M. et al. | SAE Technical Papers | 2006


    Study of potential mechanisms of traumatic rupture of the aorta using insitu experiments

    Hardy, Warren N. / Shah, Chirag S. / Kopacz, James M. et al. | Tema Archive | 2006