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Development of a Collapse Mode Control Method for Side Members in Vehicle Collisions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1991 by SAE International in United States
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Side members are provided with beads that promote more effective absorption of crash energy in vehicle frontal collisions. In this work, finite element analysis was used to investigate a method of calculating the most effective beading position. First, it was found that an inelastic buckling mode as a numerical imperfection makes it possible to analyze the collapse behavior of beaded members. Second, a new method was developed for calculating the most effective beading position along the buckling mode of side members. When a side member is provided with beads according to this method, it collapses axially, enabling it to absorb crash energy more efficiently. It was also found that the buckling mode used as a numerical imperfection for determining the placement of beads should be calculated at the peak point of the load curve.
|Technical Paper||Sheet Metal Forming Simulation for Aluminum Alloy Sheets|
|Technical Paper||Simplified Modeling and Application of Car Side Crashworthiness Improvement|
|Technical Paper||Analysis of Compressive and Bending Collapse of the Vehicle Structure|
CitationKitagawa, Y., Hagiwara, l., and Tsuda, M., "Development of a Collapse Mode Control Method for Side Members in Vehicle Collisions," SAE Technical Paper 910809, 1991, https://doi.org/10.4271/910809.
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