Extraordinary developments in virtual crash testing research have been achieved during the past decade. Advancements in hardware and software technology along with improvements in computation mechanics and increased number of full-scale crash tests contributed positively to the development of more realistic finite element models. Use of complex finite element codes based on computational mechanics principles allowed the virtual reproduction of real world problems. Regarding roadside safety, the design phase was, until now, based on the use of simplified analysis, unable to describe accurately the complexity of vehicle impacts against safety hardware. Modeling details, such as geometry, constitutive laws of the materials, rigid, kinematic and other links between bodies, definition and characterization of contact surfaces are necessary to build an accurate finite element model for an impact problem. This set of information is needed for each different body involved in the event; making the development of a complete model very much demanding. Once a part (subset) of the entire model has been accurately validated against real experimental data, it can be used again and again in other analogous models. In this paper, finite element model of a unique Heavy Goods Vehicle (HGV) was developed and partially validated using actual crash test data. Development of this particular vehicle model was important since this vehicle is extensively used in Europe to test the structural adequacy of high containment level (H4a) safety barriers according to EN 1317 standard. The HGV model studied reproduces a FIAT-IVECO F180 truck, a vehicle with 4 axles and a mass of 30,000 kg when fully loaded. The model consisted of 12,337 elements and 11,470 nodes and was built for and is ready to use with LS-DYNA finite element code from Livermore Software Technology Corporation. Results of the validation study suggest that the developed HGV model shows promise and can be used in further studies with confidence. Improvements such as, steering mechanism in front axes and suspension system is currently underway to make model more realistic.

1.
Ross H.E. Jr., 1995, “Evolution of Roadside Safety Features,” Transportation Research Circular 435, Transportation Research Board, National Research Council, Washington, D.C., pp. 5–16.
2.
White Paper, 2001, “European Transport Policy for 2010: Time to Decide,” European Commission, Brussels, http://europa.eu.int/comm/energy_transport/en/lb_en.html.
3.
Ross, H.E. Jr., Sicking, D.L., Zimmer, R.A., and Michie, J.D., 1993, “Recommended Procedures for the Safety Performance Evaluation of Highway Features.” NCHRP Report 350, National Research Council, Washington, D.C.
4.
Atahan
A. O.
,
2002
, “
Finite Element Simulation of a Strong-Post W-Beam Guardrail System
,”
Simulation, Society for Computer Simulations
, Vol.
78
, No.
10
, pp.
587
599
.
5.
Bonin, G., 2001, “Evaluation of Heavy Containment Highway Movable Steel Barrier in the Median Bypass Using Finite Element Simulation,” Informal presentation at the A2A04(2) Subcommittee on Roadside Safety - Simulation, 80th Transportation Research Board, Washington, D.C.
6.
Bonin G., Cantisani G., Loprencipe G., 2004, “Development of a HGV FEM for road safety analysis,” 8th International Symposium on Heavy Vehicle Weights and Dimensions, Muldersdrift (Gauteng), South Africa, in print.
7.
Livermore Software Technology Corporation, LSTC, 2000, “A General Purpose Dynamic Finite Element Analysis Program, LS-DYNA version 960 User’s Manual,” Livermore Software Technology Corporation, Livermore, California.
8.
Public Finite Element Model Archive: Vehicle Models, 2002, Federal Highway Administration, National Crash Analysis Center, George Washington University, Washington, D. C., http://www.ncac.gwu.edu/archives/model/index.html.
9.
European Norm, EN 1317-1, 1998, “Road Restraint Systems - Part 1: Terminology and General Criteria for Test Methods,” European Commission, Brussels.
10.
European Norm, EN 1317-2, 1998, “Road Restraint Systems - Part 2: Performance Classes, Impact Test Acceptance Criteria and Test Methods for Safety Barriers, European Commission, Brussels.
11.
Korkmaz I., Sener, A.S., and Bozkurt R, 2004, “Determination of Effective Usage Time of Vehicle Components Using Full-Scale Laboratory Tests and Computer Simulation,” Proc. of the Automotive Technology Congress, OTEKON’04, Vol. 1, pp. 151–158.
12.
Bonin G., Cantisani G., Loprencipe G., Ranzo A., 2004, “Road Safety Barriers with Short Elements of Lightweight Concrete,” 2nd International SIIV Congress, Florence, in print.
13.
Cicinnati, M.L., 1999, “Metalmeccanica Fracasso S.p.A. Single Sided Barrier for Civil Engineering Work,” Crash Test Report No. FRA/BSI-18/360, Inrets Road Equipment Test Laboratory, LIER, Lyon.
14.
Bonin G., and Ranzo, A., 2004, “Dynamic Actions on Bridge Slabs due to Heavy Vehicle Impact on Roadside Barriers,” Transportation Research Board, 83rd Meeting paper No. 04-3501, Washington D.C.
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