Computerized Simulation using Finite Element Method (FEM) for Guardrail Crashes

Bibie Sara binti Salleh, Suryani Ilias, Ali Abd Almisreb, Rizati Hamidun, Mohd Azri Asmat, Nur Izzah Sahirah Samat


The rigid structure of the existing w-beam guardrail design leads to numerous death and injuries. Recently, a new prototype was produced by considering the best design while innovating an additional element to the existing w-shape guardrail to create a safer and more practical device. Yet, the behavior of the prototype when subjected to explicit impaction force with proper environment setting was not properly investigated experimentally. By using Ansys Ls-Dyna software, finite element analysis was conducted by subjecting a higher impaction velocity with proper environment setting on both models: (1) the existing w-beam model, and (2) prototype model. The validity of the produced finite element model was ensured by comparing the maximum impaction force of the existing experimental literature. The model deformation in terms of element displacement and scale of force received by both models was observed. The observation showed that the additional element on the prototype reduced the deformation rate onto the beam span under the impaction force of 26.933 kN.


Simulation, Ansys Ls-Dyna, Guardrail Crashes

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ISSN 2233 -1859

Digital Object Identifier DOI: 10.21533/scjournal

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