A Theoretical Approach upon the Stiffness of Vehicle Resistance Structure Submitted to an Axial Impact

Abstract:

The automotive passive safety has the goal to protect the car occupants, so whatever decelerations transmitted to the occupants are manageable by the interior restraints to fall within the range of human tolerance. The ultimate goal of the safety engineer is to reduce injury to car occupants. The study on how the resistance structure of the vehicle deforms is an ongoing challenge for engineers to find optimized solutions. Various methods for absorbing the force of the impact have been adopted over the years. This paper undertakes an analysis into the amount of energy absorbed in case a tube is subject to axial impact, which stands for the longitudinal struts of a vehicle frame, on which deformation triggers were arranged in two modes.

• Periodical: Applied Mechanics and Materials (Volume 659)
• Pages: 250-255
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.659.250
• Online since: October 2014
• Authors: Adrian Soica*, Stelian Tarulescu, Nicolae Ispas
• Keywords: Crash Absorption, Thin Walled Tube, Vehicle Safety, Vehicle Structure

References

[1] W. Pawlus, H. Reza, K.G. Robbersmyr, Development of lumped-parameter mathematical models for a vehicle localized impact, Journal of Mechanical Science and Technology 25 (7) (2011), 1737-1747.

DOI: 10.1007/s12206-011-0505-x

[2] P. Du Bois, C. Chou, B. Fileta, T. Khalil, A. King, H. Mahmood, H., Mertz, J. Wismans, Vehicle Crashworthiness and Occupant Protection, American Iron and Steel Institute, 2000 Town Center Southfield, Michigan, (2004).

[3] S. Tabacu, Modele pentru studiul impactului frontal si lateral la automobile de fabricatie romaneasca, Doctoral thesis, (2002).

[4] L. Sunghak et al., Effect of Troggering on the energy absorbtion capacity of axial compressed aluminium tubes, Materials and design, 20 (1999), 31-40.

[5] J. Marsolek, H.G. Reimerdes, Energy absorption of metallic cylindrical shells with induced non axysimmetric folding patterns, International Journal of Impact Engineering, 30, (2004), 1209-1223.

DOI: 10.1016/j.ijimpeng.2004.06.006

[6] D. Dimas, A. Alves, N. Peixinho, D. Soares, C. Vilarinho, Configurable thermal induced triggers for crashworthiness application, Proceedings of conference SMART' 09- Smart Structures and Materials, Porto, Portugal, Julho de (2009).

[7] Kee Poong, Kim, Hoon, Huh, Dynamic limit analysis formulation for impact simulation of structural members, International Journal of Solids and Structures 43, (2006), 6488-6501.

DOI: 10.1016/j.ijsolstr.2005.12.004

[8] Anthony K. Picketta, Thomas Pyttelb, Fabrice Payenb, Franck Lauroc, Nikica Petrinicd, Heinz Wernere, Jens Christlein, Failure prediction for advanced crashworthiness of transportation vehicles, International Journal of Impact Engineering 30, (2004).

[9] P. Jonsén, E. Isaksson, K.G. Sundin, M. Oldenburg, Identification of lumped parameter automotive crash models for bumper system development, International Journal of Crashworthiness, 14: 6, (2009), 533 - 541.

DOI: 10.1080/13588260902837262

[10] M. Polhak, J. Majak, M. Eerme, Optimization of car frontal protection system, Int. J. Simulation Multidisciplinary Design Optim., (2007), 1, 31–37.

DOI: 10.1051/ijsmdo:2007004

[11] R. Gaiginschi, I. Filip, Technical expertise of road accidents, Editura Tehnica, (2002).

[12] A. Soica, N. Ispas, Establishing the Stiffness Coefficient of a Structure by Aproximating the Deceleration Curve with Polinomial Laws of Various Degrees, Proceedings extended abstracts of the annul session of scientific papers IMT Oradea-(2012).

[13] A. Soica, N. Gh. Radu, The Influence Of Triggers Geometry Upon The Stiffness Of Cylindrical Thin Walled Tubes, Central European Journal of Engineering, Print ISSN 1896-154, (2013), Springer, DOI 10. 2478/s13531-013-0125-6.

DOI: 10.2478/s13531-013-0125-6