United States Department of Transportation
i
Experimental and Numerical Simulation of the Use of Fiber Reinforced Composite Materials for Road Side Safety Applications
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1997-05-01
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By Taiei, Ala
[PDF-1.18 MB]
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Abstract:The Federal Highway Administration is currently investigating the potential of using fiber reinforced composite materials for applications in highway structures. The feasibility and application of composite materials are analyzed through a series of impact tests on laboratory specimens and numerical simulation. The investigation is conducted in two parts. The objective of the first part is to determine the impact characteristics and failure modes of pultruded box-beams under impact loads. The loading rate sensitivity of pultruded box-beams with different resin systems is investigated. The second study is a numerical simulation of a series of impact tests of steel guardrails. A finite element model of the pendulum fixture of the Federal Outdoor Impact Laboratory is developed with the following objectives: (1) determine the feasibility of simulating a full-scale impact test of guardrails made of isotropic and anisotropic materials; and (2) identify the critical parameters governing a successful simulation of test fixture pendulum impact. Results of the experimental investigations are presented. A successful simulation is performed, and possibilities for future investigations are recommended.
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