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Crash Simulation of PACE Formula-1 Race Car

During the spring of 2011 the PACE Formula-1 race car is scheduled to complete an official time trial at the Miller Motorsports Park, Tooele, Utah, USA. While the car will be racing solo, there exist potential structures that the car could impact. University and track officials have requested, as a result, an analysis of the Formula-1 race car crash worthiness to alleviate concerns about the driver's safety and verify the mechanical integrity of the car. In order to validate the crash worthiness and overall safety provided by the monocoque design and fabrication, students at BYU performed two FEA crash simulations and analyzed the results. The two crash simulations performed are a frontal impact with a wall and a side impact with a pole. These students commenced this project by using a NX CAD model simplification of the race car, preprocessing this model in HyperMesh, and solving various crash scenarios with LS-DYNA. The students were mentored by an application engineer from LSTC and faculty from BYU. This paper discusses the processes of taking the NX car assembly model that was created by students from 26 different PACE universities and the steps taken to perform the two FEA crash simulations. Some of the post processing involved in the development of the FEA simulations included, simplifying it into exterior surface models, importing the surfaces into HyperMesh for meshing and mesh optimization, assigning material properties, assigning loads and constraints, and impact structures This paper concludes with a discussion of the results of the two FEA crash simulations and the verification of crash worthiness. Crash worthiness will be defined as the ability of the car to absorb the energy from impact as well as, the ability to avoid foreign material in the monocoque area.