The comparison shows that; numerical results are in good agreement with the test results.
📌 3 Key Takeaways
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Objective & Hypothesis:In this study, the crashworthiness of a medium heavy vehicle onto a designed security road blocker (SRB) as a vehicle barrier is studied numerically and compared with full-scale on-site crash test results in the literature.
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Key Findings & Data:Structural integrity of the road blocker is studied by nonlinear dynamic methods under the loading conditions which are defined in the standards (ASTM F2656-07).
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Conclusion & Impact:The comparison shows that; numerical results are in good agreement with the test results.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Vehicle barrier · impact mechanics · finite element
Abstract
In this study, the crashworthiness of a medium heavy vehicle onto a designed security road blocker (SRB) as a vehicle barrier is studied numerically and compared with full-scale on-site crash test results in the literature. Structural integrity of the road blocker is studied by nonlinear dynamic methods under the loading conditions which are defined in the standards (ASTM F2656-07). Ls-Dyna® software is used to solve the problem numerically. The penetration of the leading edge of the vehicle with respect to the attack face of the blocker is given both experimentally and numerically. Test and numerical results are compared. The comparison shows that; numerical results are in good agreement with the test results.
YAMAN, K., KAPLAN, E. M. (2017). Crash analysis and evaluation of the security road blocker (SRB) using finite element method. International Journal of Automotive Engineering and Technologies, Cilt: 6 - Sayı: 1, 18–29. https://ajindex.com/articles/258331
Unified Facilities criteria (UFC), “Selection and application of vehicle barriers”, USA, 1990. Designation F2656-07, “American Society of Test Materials (ASTM)”, Standard Test Method for Vehicle Crash Testing of Perimeter Barriers. Goldsmith, W., “Impact Theory and Physical Behavior of Colliding Solids”, Dover Publications, 2001.
Poursartip, A., “Instrumented Impact Testing at High Velocities”, Journal of Composites Technology and Research, vol. 15 issue 1, 1993.
Nelson, E.A., Hong, L., “Curved barrier impact of a NASCAR series stock car”, 8th International Ls-Dyna Users Conference, Crash Safety, Altair Engineering, M.I., U.S.A., 2004.
Chirwa, E.C., Peng, Q., Lace, A., Matsika, E., Nowpada, S., “New generation of Security Road Blocker (SRB) Design and Its Performance Subjected to Commercial Vehicle Crash”, The 8th International Forum of Automative Traffic Safety, Bolton Automative&Aerospace Research Group, University of Bolton, U.K., 2010.
Hassan, J., “Interpretation of deformation pattern in automotive rails in frontal impact”, 7th International Ls-Dyna Users Conference, Crash Safety, Scientific Labs and Proving Grounds DaimlerChrysler Corp., Detroit, USA, 2002.
Zaouk, Abdullatif K., and Dhafer Marzougui. "Development and validation of a US side impact moveable deformable barrier FE model." 3rd European LS-DYNA Users Conference, Page. Vol. 14. 2001.
Asadi, M., Tattersall, P., Walker, B., Shirvani, H., “Advanced Finite Element Model for AE-MDB Side Impact Barrier”, 6th International Ls-Dyna Users Conference, USA, 2000.
Ren, Z., Vesenjak, M., “Computational and experimental crash analysis of the road safety barrier”, University of Maribor, Faculty of Mechanical Engineering, Slovenia, 2005. European Committee for Standardization, “European Standard EN 1317-1”, EN 1317-2, Road Restraint Systems, 1998.
Borovinsek, M., Vesenjak, M., Ulbin, M., Ren, Z., “Simulation of crash tests for high containment levels of road safety barriers”, Eng. Failure Analysis, Vol.14(8):1711-1718, 2007.
Yin, H.J., Jin, J., Yang, P.H., Pan, Y., Ma, S.K., “Simulation Analysis of Crash Tests for the Front Side Member in LS-DYNA”, Adv. Materials Research, Vol.199/200:1200-1205, 2011.
Chen, L., Xiao, G., Chunlin, L., Agrawal, A.K., “Test and numerical simulation of truck collision with anti-ram bollards” Int. J. of Impact Eng., 75:30-39, 20s.15. TAY, S.K., LIM, B., NG, S.H., “Crash Impact Modelling of Security Bollards”, 12th. International Ls-Dyna Users Conf., 2012.