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Energy Absorption in Aluminum Extrusions for a Spaceframe Chassis
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English
Abstract
This work describes the design, finite-element analysis, and verifications performed by LLNL and Kaiser Aluminum for the prototype design of the CALSTART Running Chassis purpose-built electric vehicle. Component level studies, along with our previous experimental and finite-element works, provided the confidence to study the crashworthiness of a complete aluminum spaceframe. Effects of rail geometry, size, and thickness were studied in order to achieve a controlled crush of the front end structure. These included the performance of the spaceframe itself, and the additive effects of the powertrain cradle and powertrain (motor/controller in this case) as well as suspension. Various design iterations for frontal impact at moderate and high speed are explored.
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Authors
Citation
Logan, R., Perfect, S., and Parkinson, R., "Energy Absorption in Aluminum Extrusions for a Spaceframe Chassis," SAE Technical Paper 951079, 1995, https://doi.org/10.4271/951079.Also In
References
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