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Development of efficient finite element model for Truck Mounted Attenuator

Krzysztof Grzegorz Waszczuk, University of Nebraska - Lincoln


Roadside safety is one of the major research areas in engineering. Truck Mounted Attenuators are used to protect motorists, workers, and equipment from road accidents. Usually they consist of an energy absorption cushion and lift up unit called the docking station which is used for mobile carrier attachment. In case of collision, these safety devices must dissipate kinetic energy in a satisfactory manner such that the deceleration does not exceed critical levels for the drivers and passengers. The objective of this study is to develop an efficient finite element model for the truck mounted attenuator with speed capacity of 100 [km/h]. Computer simulations can significantly reduce the number of expensive full-scale crash tests required for the development of the system. Two different types of test are performed: full scale dynamic impact tests and static tests in the hydraulic pressure machine on a single unit L-shape cell. The collected test data is used to calibrate the finite element model, so that it will accurately represent the actual behavior. Then, the structural design was optimized. The study presents the research procedure and results.

Subject Area

Engineering|Civil engineering

Recommended Citation

Waszczuk, Krzysztof Grzegorz, "Development of efficient finite element model for Truck Mounted Attenuator" (2013). ETD collection for University of Nebraska - Lincoln. AAI3566162.