Abstract

This paper deals with a FEA simulation of the vehicle crash with steel safety barriers in ANSYS LS-DYNA® 15.0. Two types of safety barriers are used: JSNH4/H2 and JSAM-2/H2. A geometrical model of the barrier in the Modeler ANSYS® Workbench™ 15.0 was created and after that it was transformed into LS-DYNA® 15.0 to complete the crash test simulation. After computation in solver ANSYS LS-DYNA® 15.0 the results of the simulation such as impact forces, a body displacement and an integral energy were analyzed.

Highlights

  • All safety barriers for permanent and repeated use on the roads have to be tested in real crash tests

  • The finite element methods (FEM) program ANSYS WorkbenchTM 15.0, LS-DYNA 15.0 and LS-PrePost 4.1 are used for the FEA simulation of the static and the dynamic tests of barriers

  • The figures show the most important results from the FEA simulation of the crash test TB11 performed for the JSAM-2/H2

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Summary

Introduction

All safety barriers for permanent and repeated use on the roads have to be tested in real crash tests. A FEA simulation with an application of highly sophisticated programs that use a FEM analysis can present a very powerful tool and be a great support for performing real crash tests, contributing to a correct and accurate design and construction of safety barriers. Borovinšek M. in his work uses simulation for designing optimal reinforcement of a crash barrier commonly used in Slovenia [6] Another example of an application of the FEA simulation is a publication by Ulker M. The numerical analysis of designing and testing of bridge barriers is discussed [11] In his other work, “Methodology of Validation of FE Model for Simulations of Real Crash Tests”, Drozda J. tries to determine a method that leads to a creation of a validated finite element model before performing the full scale crash test [10]. The FEM program ANSYS WorkbenchTM 15.0, LS-DYNA 15.0 and LS-PrePost 4.1 are used for the FEA simulation of the static and the dynamic tests of barriers

Steel safety barriers
Finite element modelling and simulation
Results and discussion
Correlation of results
Conclusions
Full Text
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