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This figure shows two separate sets of diagrams, each with three separate images.
The first set of diagrams is labeled Fast Bogie – Aptek Results. The first image in this set shows a diagram of the post used in the dynamic test simulation. It shows the full length of the post, the lower half colored a light green, the next section a light blue and the remaining top quarter s light red. No damage has of yet occurred in this first model. Near the top quarter of this model is a cylindrical device that has just begun to come in contact with the post itself.
The second image shows the same post, the cylindrical device having already impacted the structure, forcing the top half of the post to lean to the right hand side of the diagram. A small gap has begun to form a short way down into the green colored section of the post.
The third image in this set shows the same post, the cylindrical device having impacted the structure more fierce, forcing the post to lean considerably to the right hand side of the diagram.
The top half of the post now leans at a rough forty-five degree angle from its original position, making a considerably larger gap in the initial fracture of the post. The fracture itself appears level, the break clean.
The second set of diagrams is labeled Fast Bogie – UNL results. The first image in this set shows a diagram of the post used in the dynamic test simulation. The time recorded on this first diagram reads Time = zero. It shows the full length of the post, the lower half colored a light green, the next section a light blue and the remaining top quarter s light red. No damage has of yet occurred in this first model. Near the top quarter of this model is a cylindrical device that has just begun to come in contact with the post itself.
The second image shows the same post, the cylindrical device having already impacted the structure, forcing the top half of the post to lean to the right hand side of the diagram. A small gap has begun to form a short way down into the green colored section of the post. The recorded time on this diagram reads Time = 9.9975.
The third image in this set shows the same post, the cylindrical device having impacted the structure more fierce, forcing the post to lean considerably to the right hand side of the diagram.
The top half of the post now leans at a rough forty-five degree angle from its original position, making a considerably larger gap in the initial fracture of the post. The fracture itself appears jagged near the backside of the split. The recorded time on this diagram reads Time = 40.
FHWA-HRT-05-096
