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- Thomson, Robert
(författare)
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Roadside safety design philosophies : are they working?
- 2000
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Ingår i: Proceedings of Traffic Safety on Two Continents. Conference in Malmö, Sweden, September 20-22, 1999. - Linköping : Statens väg- och transportforskningsinstitut. ; , s. 101-114
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 3. |
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| 4. |
- Wu, Weijia, 1974, et al.
(författare)
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Compatibility between passenger vehicles and road barriers during oblique collisions
- 2004
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Ingår i: International Journal of Crashworthiness. - : Informa UK Limited. - 1358-8265 .- 1754-2111. ; 9:3, s. 245--253-253
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Tidskriftsartikel (refereegranskat)abstract
- In the European and US testing procedures for road barriers, vehicles are specified for thetests essentially by their mass properties. However, vehicles with similar mass can behave quitedifferently during a crash event. For the specific crash situation with the roadside restraint systems,e.g. W-beam guardrail, cable barriers, etc., the vehicle structure has to be compatible with the roadrestraint systems in geometry and crash stiffness to ensure safe operation during the interactions ofvehicles and road barriers. The goal of this paper is to make a parametric investigation for thegeometric compatibility between the compact passenger vehicles and the road barriers. The FiniteElement model Ford Festiva and a weak-post W-beam guardrail were used for analyzing the obliqueimpact situation with a high impact speed and a small angle. For this specific situation the dynamicresponses of the vehicle and the guardrail during impacts were investigated to study their structuralinteractions. The simulation results of the modified vehicle model and guardrail model were reasonablein comparison with the crash test data under the similar impact conditions.
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| 5. |
- Wågström, Linus, 1977, et al.
(författare)
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Structural adaptivity for acceleration level reduction in passenger car frontal collisions
- 2004
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Ingår i: International Journal of Crashworthiness. - 1358-8265 .- 1754-2111. ; 9:2, s. 121-127
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Tidskriftsartikel (refereegranskat)abstract
- A mathematical model was developed to explore and demonstrate the injury reducing potential of an adaptable frontal stiffness system for full frontal collisions. The model was validated by means of crash tests and was found to predict the peak accelerations of the crash test vehicles well, whereas correlation concerning mean acceleration or residual crush was not found. Vehicles weredivided into three mass classes, and a test matrix was established in order to evaluate different combinations of vehicles involved in frontal crash at three closing velocities. In a baseline simulation setup, constant stiffness values were used and the results were compared to the corresponding simulations using adaptable frontal stiffness. Results show promising acceleration peak reductions at low speeds, implying that injury risk reductions are possible.
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