Energy Absorption in Aluminum Extrusions for a Spaceframe Chassis 951079
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.
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. Download Citation
Author(s):
Roger W. Logan, Scott A. Perfect, Ray D. Parkinson
Affiliated:
Lawrence Livermore National Lab.
Pages: 12
Event:
International Conference On Vehicle Structural Mechanics & Cae
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the Ninth International Conference on Vehicle Structural Mechanics and Cae-P-290
Related Topics:
Aluminum
Electric vehicles
Chassis
Finite element analysis
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