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Published in: The International Journal of Advanced Manufacturing Technology 9-10/2020

27-04-2020 | ORIGINAL ARTICLE

Cross-sectional deformation of high strength steel rectangular welded tube in rotary draw bending with different constitutive relationships

Authors: Hailong Liu, Yuli Liu, Xiaoyu Du

Published in: The International Journal of Advanced Manufacturing Technology | Issue 9-10/2020

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Abstract

An accurate constitutive relationship of rectangular welded tube is important to improve prediction accuracy of cross-section deformation in rotary draw bending by simulation. So five constitutive relationships of QSTE700 high strength steel rectangular welded tube were selected and determined. And five FE models of rotary draw bending process of rectangular welded tube by using these five constitutive relationships were built. Based on the above FE models, the effect of different constitutive relationships of rectangular welded tube on cross-sectional deformation in rotary draw bending process was studied. The results showed that height deformation ratio and width deformation ratio obtained by simulations were gradually increased to approach experimental results when using mixture-model, homogeneity model, W1H model, W2H model and W4H model, successively, and the simulation results obtained by W4H model were closest to experimental results, so the “weld and four heat affected subzones” model was suitable for describing the constitutive relationship of rectangular welded tube, which further meant that when the heat-affected zone was subdivided into more subzones, the constitutive relationship of QSTE700 rectangular welded tube became more accurate.

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Literature
14.
go back to reference Yang LF, Sun KR (2008) Modeling approach and deformation behavior of a tailor welded tube in hydroforming. Journal of Plastic Engineering 15:51–55 (In Chinese) Yang LF, Sun KR (2008) Modeling approach and deformation behavior of a tailor welded tube in hydroforming. Journal of Plastic Engineering 15:51–55 (In Chinese)
Metadata
Title
Cross-sectional deformation of high strength steel rectangular welded tube in rotary draw bending with different constitutive relationships
Authors
Hailong Liu
Yuli Liu
Xiaoyu Du
Publication date
27-04-2020
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 9-10/2020
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-020-05293-y

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