TY - CONF
T1 - Estimation of Frontal Crush Stiffness Coefficients for Car-to-Heavy Truck Underride Collisions
AU - Tavakoli, Massoud S.
AU - Valliappan, Palanippan
AU - Pranesh, Anand
AU - Savage, Carl M.
N1 - Next, the evaluated FE model was used to pursue the main objective of this work, namely to develop an approach for estimating underride crush energy. The linear-spring methodology was adopted whereby the underride crush stiffness was determined by relating the residual upper radiator support deformation to crush energy.
PY - 2007/4/16
Y1 - 2007/4/16
N2 - The objective of this paper was to evaluate a public domain finite element (FE) model of a 1990 Ford Taurus from the perspective of crush energy absorption. The validity of the FE model was examined by comparing simulation results to several published full-frontal crash tests. The suitability of the model for underride simulation was evaluated against two series of full-scale crash tests into vertically offset rigid barriers. Next, the evaluated FE model was used to pursue the main objective of this work, namely to develop an approach for estimating underride crush energy. The linear-spring methodology was adopted whereby the underride crush stiffness was determined by relating the residual upper radiator support deformation to crush energy. An underride crush stiffness estimation method was proposed based on modifying the full-frontal stiffness coefficients. The method was further simplified into a “Rule-of-Thumb” estimation method, and an example of its application was provided along with a discussion of its estimation accuracy.
AB - The objective of this paper was to evaluate a public domain finite element (FE) model of a 1990 Ford Taurus from the perspective of crush energy absorption. The validity of the FE model was examined by comparing simulation results to several published full-frontal crash tests. The suitability of the model for underride simulation was evaluated against two series of full-scale crash tests into vertically offset rigid barriers. Next, the evaluated FE model was used to pursue the main objective of this work, namely to develop an approach for estimating underride crush energy. The linear-spring methodology was adopted whereby the underride crush stiffness was determined by relating the residual upper radiator support deformation to crush energy. An underride crush stiffness estimation method was proposed based on modifying the full-frontal stiffness coefficients. The method was further simplified into a “Rule-of-Thumb” estimation method, and an example of its application was provided along with a discussion of its estimation accuracy.
UR - https://saemobilus.sae.org/content/2007-01-0731/
U2 - 10.4271/2007-01-0731
DO - 10.4271/2007-01-0731
M3 - Presentation
T2 - SAE International Congress Exposition
Y2 - 16 April 2007
ER -