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Hydroforming Simulation for High Strength Steel Tubes
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
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Tubular hydroforming is being used extensively for manufacturing various automotive structural parts due to its weight reduction and cost saving potentials. The use of a thin wall advanced high strength steel (AHSS) tube offers great potential to further expand hydroforming applications to upper body components. In this study, numerical and experimental investigations are conducted on a free expansion hydroforming case using various AHSS thin wall tubes. The results are also compared with tubes made from conventional steels and different tubing processes. The appropriate use of the forming limit in hydroforming is also discussed. In numerical study, a new simulation method is developed and validated to handle tube material properties input. Good correlations to the experimental data have been obtained. The new method only requires the flat sheet stress–strain curves as the basic material property. Tube and weld properties are modeled as a pre-strained tubular blank. One of the advantages of this method is that it can be used to handle various tube-making processes.
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CitationChen, X., Shi, M., Watanabe, K., Hayashida, Y. et al., "Hydroforming Simulation for High Strength Steel Tubes," SAE Technical Paper 2006-01-0545, 2006, https://doi.org/10.4271/2006-01-0545.
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