Crash analysis and evaluation of cable median barriers on sloped medians using an efficient finite element model

Abstract Perpetual high traffic volumes on U.S. highways have raised more public concern than ever about transportation safety. Over the years, various traffic barrier systems, including cable median barriers (CMBs), have been developed to reduce the number and severity of vehicle crashes. Despite their general effectiveness, there remains room for improvement, especially when CMBs are installed on unlevelled terrains such as sloped medians. The destructive nature of crashes imposes significant challenges to barrier design using full-scale physical testing; numerical simulations thus become a viable means to support crash analysis, performance evaluation, and barrier designs. In this study, validated vehicle and CMB models were used to perform full-scale simulations of vehicle-CMB impacts. Several CMB designs, including the currently used one, were evaluated under vehicular impacts at different velocities and angles. To address the challenge of modeling slender members such as cables and hook-bolts in contact analyses, an efficient beam-element contact model was employed in the analysis. Different design options of cable height and spacing under various impact velocities and angles were investigated in this study.

[1]  Richard B. Albin,et al.  Washington State Cable Median Barrier , 2001 .

[2]  Mark F. Horstemeyer,et al.  Numerical simulations of multiple vehicle crashes and multidisciplinary crashworthiness optimization , 2005 .

[3]  Pradeep Mohan,et al.  Finite element modeling and validation of a 3-strand cable guardrail system , 2005 .

[4]  Douglas J. Gabauer,et al.  Evaluation of Cross Median Crashes , 2005 .

[5]  Massimiliano Avalle,et al.  Design optimization by response surface methodology: application to crashworthiness design of vehicle structures , 2002 .

[6]  Ronald K Faller,et al.  TEST MATRICES FOR EVALUATING CABLE MEDIAN BARRIERS PLACED IN V-DITCHES , 2012 .

[7]  Pradeep Mohan,et al.  Performance Evaluation of Low-Tension, Three-Strand Cable Median Barriers on Sloped Terrains , 2007 .

[8]  Roger P Bligh,et al.  Part 1: Roadside Safety Design: Developing Guidelines for Median Barrier Installation: Benefit-Cost Analysis with Texas Data , 2005 .

[9]  Marco Anghileri,et al.  Multi-objective optimisation of composite absorber shape under crashworthiness requirements , 2004 .

[10]  Pradeep Mohan,et al.  Performance Evaluation of Low-Tension Three-Strand Cable Median Barriers , 2007 .

[11]  Malcolm H Ray,et al.  Repeatability of Full-Scale Crash Tests and Criteria for Validating Simulation Results , 1996 .

[12]  R. M. Hackett,et al.  Simulation of a Vehicle Impacting a Modified Thrie-Beam Guardrail , 1997 .

[13]  M. B. C. Ulker,et al.  Traffic Barriers under Vehicular Impact: From Computer Simulation to Design Guidelines , 2008, Comput. Aided Civ. Infrastructure Eng..

[14]  Marcus Redhe,et al.  Optimization of the new Saab 9-3 exposed to impact load using a space mapping technique , 2004 .

[15]  A de Pennington,et al.  The frontal impact response of a spaceframe chassis sportscar , 2000 .

[16]  Cing-Dao Kan,et al.  Crashworthiness Evaluation Using Integrated Vehicle and Occupant Finite Element Models , 2001 .

[17]  D L Sicking,et al.  GUIDELINES FOR PLACEMENT OF LONGITUDINAL BARRIERS ON SLOPES. VOLUME I: EXECUTIVE SUMMARY. FINAL REPORT , 1984 .

[18]  Qing Li,et al.  Design optimization of regular hexagonal thin-walled columns with crashworthiness criteria , 2007 .

[19]  D Marzougui,et al.  Finite element modeling of the crash performance of roadside barriers , 2004 .

[20]  Cing-Dao Kan,et al.  Analyzing the Potential Interface Effectiveness for Cable Barriers in Elevated Median Cross Sections , 2012 .

[21]  Qian Wang,et al.  Modeling and optimization of foam-filled thin-walled columns for crashworthiness designs , 2010 .

[22]  Xu Han,et al.  Optimization design of corrugated beam guardrail based on RBF-MQ surrogate model and collision safety consideration , 2014, Adv. Eng. Softw..

[23]  K. T. Gursel,et al.  Non-linear finite element analyses of automobiles and their elements in crashes , 2010 .

[24]  R A Zimmer,et al.  RECOMMENDED PROCEDURES FOR THE SAFETY PERFORMANCE EVALUATION OF HIGHWAY FEATURES , 1993 .

[25]  J. D. Reid.  Towards the understanding of material property influence on automotive crash structures , 1996 .

[26]  W Wang,et al.  Numerical analysis of a small European vehicle under rollover condition , 2005 .

[27]  Hayes E Ross,et al.  GUIDELINES FOR PLACEMENT OF LONGITUDINAL BARRIERS ON SLOPES. VOLUME III: GUIDELINES. FINAL REPORT , 1984 .

[28]  Wanda L Menges,et al.  NCHRP Report 350 Test 3-11 of the Washington 3-Strand Cable Barrier with New York Cable Terminal , 2000 .

[29]  Pradeep Mohan,et al.  Validation of a Single Unit Truck model for roadside hardware impact , 2007 .

[30]  Yucheng Liu,et al.  Crashworthiness design of multi-corner thin-walled columns , 2008 .

[31]  Christopher Y. Tuan,et al.  Progressive Failure Simulation of Security Cable Barriers , 2010 .

[32]  William W. Hunter,et al.  Three-Strand Cable Median Barrier in North Carolina: In-Service Evaluation , 2001 .

[33]  D L Bullard,et al.  Cable and Wire Rope Barrier Design Considerations: Review , 2003 .

[34]  Qian Wang,et al.  An efficient FE model of slender members for crash analysis of cable barriers , 2013 .

[35]  M H Ray,et al.  The Use of Finite Element Analysis in Roadside Hardware Design , 1996 .

[36]  Matej Borovinšek,et al.  Simulation of crash tests for high containment levels of road safety barriers , 2007 .

[37]  S. Emerson,et al.  AASHTO (American Association of State Highway and Transportation Officials). 2001. A Policy on Geometric Design of Highways and Streets. Fourth Edition. Washington, D.C. , 2007 .

[38]  Shaw Voon Wong,et al.  Simulation of motorcyclist's kinematics during impact with W-Beam guardrail , 2006, Adv. Eng. Softw..

[39]  M H Ray,et al.  Tests and simulation of a w-beam rail-to-post connection , 2003 .

[40]  Masoud Rais-Rohani,et al.  A comparative study of metamodeling methods for multiobjective crashworthiness optimization , 2005 .

[41]  Yujiang Xiang,et al.  Optimal crashworthiness design of a spot-welded thin-walled hat section , 2006 .

[42]  Roger P Bligh,et al.  Developing Guidelines for Median Barrier Installation , 2005 .

[43]  Ren-Jye Yang,et al.  Metamodeling development for vehicle frontal impact simulation , 2001, DAC 2001.

[44]  John D. Reid.  Designing for the critical impact point on a new bullnose guardrail system , 2000 .