Impact Analysis and Modification of Front Inner Bumper

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  • Abstract

    This paper presents the modification of an existing front inner bumper of a passenger car.  The manufactured bumper was captured by using three-dimensional scanner ATOS-GOM in order to obtain the CAD cloud geometrical data. Impact analysis was the conducted by employing dynamic explicit time stepping algorithm software IMPACT. The software was firstly benchmarked with known experimental results of beam under low velocity impact. The simulation and experimental results of the deflected beam were relatively comparable with variation from 1.6 to 9.5%. Two impact simulations were then performed on the real bumper; 40 percent offset collision and full frontal collision. The collisions were tried in different velocity of 48 km/h, 64 km/h and 110 km/h. The results were utilized as the benchmarking platform to enhance the bumper performance. Two alternative design modification were tried. Both design A and B exhibit significant increase of internal energy adsorbed. Even with the increase of energy being adsorbed by both the designs, still design B exhibits superiority in every way possible.


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  • References

      [1] Deb, A., Mahendrakumar, M., Chavan, C., Karve, J., Blankenburg, D. & Storen, S. (2004). Design of an aluminium-based vehicle platform for front impact safety. International Journal of Impact Engineering, 30(8-9), pp. 1055 – 1079.

      [2] Marzbanrad, J., Alijanpour, M. & Kiasat, M.S. (2009). Design and analysis of an automotive bumper beam in low-speed frontal crashes. Thin-Walled Structures, 47(8-9), pp. 902 – 911

      [3] NHTSA (1967). Federal motor vehicle safety standards and regulations. Vehicle Safety Compliance. Last Retrieval 2nd August 2017.

      [4] Alghamdi, A.A.A. (2001). Collapsible impact energy absorbers: an overview. Thin-Walled Structures, 39(2), pp. 189 –213.

      [5] Norman & Jones (2010). Dynamic energy absorption and perforation of ductile structures. International Journal of Pressure Vessels and Piping, 87(9), pp. 482 – 492.

      [6] Visser, W., Sun, Y., Gregory, O., Plume, G., Rousseau, C.E. & Ghonem, H. (2011). Deformation characteristics of low carbon steel subjected to dynamic impact loading. Materials Science and Engineering: A, 528(27), pp. 7857 –7866

      [7] Dorogoy, A. & Rittel, D. (2007). Transverse impact of free to free square aluminum beams: an experimental-numerical investigation. Technical report, Faculty of Mechanical Engineering, Technion, Israel Institute of Technology 32000 , Haifa, Israel, submitted to Appear in International Journal of Impact Engineering, Volume 34 (2007)

      [8] Cui, S., Hao, H. & Cheong, H.K. (2001). Numerical analysis of dynamic buckling of rectangular plates subjected to intermediate-velocity impact. International Journal of Impact Engineering, 25(2), pp. 147 – 167.

      [9] Avalle, M., Chiandussi, G. & Belingardi, G. (2002). Design optimization by response surface methodology: application to crashworthiness design of vehicle structures. Structural and Multidisciplinary Optimization, 24, pp. 325–332

      [10] King, A. & Chou, C. (1976). Mathematical modelling, simulation and experimental testing of biomechanical system crash response. Journal of Biomechanics, 9(5), pp. 301 – 317.

      [11] Teng, T.L., Chang, F.A., Liu, Y.S. & Peng, C.P. (2008). Analysis of dynamic response of vehicle occupant in frontal crash using multibody dynamics method. Mathematical and Computer Modelling, 48(11-12), pp. 1724 – 1736.

      [12] Cho, Y.B., Bae, C.H., Suh, M.W. & Sin, H.C. (2006). A vehicle front frame crash design optimization using hole-type and dent-type crush initiator. Thin-Walled Structures, 44(4), pp. 415 – 428.

      [13] Obradovic, J., Boria, S. & Belingardi, G. (2012). Lightweight design and crash analysis of composite frontal impact energy absorbing structures. Composite Structures, 94(2), pp. 423 – 430.

      [14] Huang, M. (2002). Vehicle Crash Mechanics. CRC Press LLC.

      [15] Mannan, M., Ansari, R. & Abbas, H. (2008). Failure of aluminium beams under low velocity impact. International Journal of Impact Engineering, 35(11), pp. 1201 – 1212

      [16] NHTSA (1967). Federal motor vehicle safety standards and regulations. Vehicle Safety Compliance. Last Retrieval 17th August 2018.




Article ID: 24781
DOI: 10.14419/ijet.v8i1.1.24781

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