The Head Injury Criterion (HIC) in FMVSS 208 for evaluating the potential head injury requires maximization of a mathematical expression, involving the time-average acceleration, by varying the limits (t1, t2) of the time interval over which the average is calculated.This paper describes the HIC behavior through the analysis of a function of two independent variables t1 and t2. The analysis is carried out for any arbitrary acceleration profile a(t). It is found that maximization requires that a(t1) = a(t2). Also, for the unique values of t1 and t2 that maximize HIC, the average acceleration between t1 and t2 is 5/3 times the acceleration at t1 or t2. Illustrative examples are provided by applying this condition to simple pulses. Numerical results are presented in tables and graphs.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Analytical Studies of the Head Injury Criterion (HIC)


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1974 Automotive Engineering Congress and Exposition ; 1974



    Publication date :

    1974-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Deflector for reduced head injury criterion

    TASTEKIN OZGUR | European Patent Office | 2019

    Free access

    DEFLECTOR FOR REDUCED HEAD INJURY CRITERION

    TASTEKIN OZGUR | European Patent Office | 2018

    Free access

    DEFLECTOR FOR REDUCED HEAD INJURY CRITERION

    TASTEKIN OZGUR | European Patent Office | 2016

    Free access

    DEFLECTOR FOR REDUCED HEAD INJURY CRITERION

    TASTEKIN OZGUR | European Patent Office | 2019

    Free access

    Crash optimization considering the head injury criterion

    Yoon, Jong-Min / Lee, Youngmyung / Park, Sang-Ok et al. | SAGE Publications | 2019