A semi-analytical method for the springback prediction of thick-walled 3D tubes

Z. K. Zhang; J. J. Wu; R. C. Guo; M. Z. Wang; F. F. Li; S. C. Guo; Y. A. Wang; W. P. Liu

doi:10.1016/j.matdes.2016.03.026

A semi-analytical method for the springback prediction of thick-walled 3D tubes

Z. K. Zhang, J. J. Wu, R. C. Guo, M. Z. Wang, F. F. Li, S. C. Guo, Y. A. Wang, W. P. Liu

School of Mechanical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

The aim of this paper is to investigate the deformation and springback behavior of 3D tubes under complex stress conditions. We proposed a new semi-analytical method to predict the springback behavior of 3D tubes. In the new method, discretization and approximation are implemented on the tube axis so that the deformation parameters (bending radiuses and twisting angles) can be derived. Based on the discretization and approximation, a theoretical model is proposed to calculate the stress distributions and residual deformations. The new method is applied on a typical 3D tube for springback prediction, and comparison between theoretical and experimental results shows a remarkable agreement. Additionally, it is also found that the radii after springback will decrease inversely with the increase of twisting angle, and this tendency will become clearer when the bending radius increases.

Original language	English
Pages (from-to)	57-67
Number of pages	11
Journal	Materials and Design
Volume	99
DOIs	https://doi.org/10.1016/j.matdes.2016.03.026
State	Published - 5 Jun 2016

Keywords

3D tube
Bending
Semi-analytical model
Springback prediction

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10.1016/j.matdes.2016.03.026

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title = "A semi-analytical method for the springback prediction of thick-walled 3D tubes",

abstract = "The aim of this paper is to investigate the deformation and springback behavior of 3D tubes under complex stress conditions. We proposed a new semi-analytical method to predict the springback behavior of 3D tubes. In the new method, discretization and approximation are implemented on the tube axis so that the deformation parameters (bending radiuses and twisting angles) can be derived. Based on the discretization and approximation, a theoretical model is proposed to calculate the stress distributions and residual deformations. The new method is applied on a typical 3D tube for springback prediction, and comparison between theoretical and experimental results shows a remarkable agreement. Additionally, it is also found that the radii after springback will decrease inversely with the increase of twisting angle, and this tendency will become clearer when the bending radius increases.",

keywords = "3D tube, Bending, Semi-analytical model, Springback prediction",

author = "Zhang, {Z. K.} and Wu, {J. J.} and Guo, {R. C.} and Wang, {M. Z.} and Li, {F. F.} and Guo, {S. C.} and Wang, {Y. A.} and Liu, {W. P.}",

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doi = "10.1016/j.matdes.2016.03.026",

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T1 - A semi-analytical method for the springback prediction of thick-walled 3D tubes

AU - Zhang, Z. K.

AU - Wu, J. J.

AU - Guo, R. C.

AU - Wang, M. Z.

AU - Li, F. F.

AU - Guo, S. C.

AU - Wang, Y. A.

AU - Liu, W. P.

PY - 2016/6/5

Y1 - 2016/6/5

N2 - The aim of this paper is to investigate the deformation and springback behavior of 3D tubes under complex stress conditions. We proposed a new semi-analytical method to predict the springback behavior of 3D tubes. In the new method, discretization and approximation are implemented on the tube axis so that the deformation parameters (bending radiuses and twisting angles) can be derived. Based on the discretization and approximation, a theoretical model is proposed to calculate the stress distributions and residual deformations. The new method is applied on a typical 3D tube for springback prediction, and comparison between theoretical and experimental results shows a remarkable agreement. Additionally, it is also found that the radii after springback will decrease inversely with the increase of twisting angle, and this tendency will become clearer when the bending radius increases.

AB - The aim of this paper is to investigate the deformation and springback behavior of 3D tubes under complex stress conditions. We proposed a new semi-analytical method to predict the springback behavior of 3D tubes. In the new method, discretization and approximation are implemented on the tube axis so that the deformation parameters (bending radiuses and twisting angles) can be derived. Based on the discretization and approximation, a theoretical model is proposed to calculate the stress distributions and residual deformations. The new method is applied on a typical 3D tube for springback prediction, and comparison between theoretical and experimental results shows a remarkable agreement. Additionally, it is also found that the radii after springback will decrease inversely with the increase of twisting angle, and this tendency will become clearer when the bending radius increases.

KW - 3D tube

KW - Bending

KW - Semi-analytical model

KW - Springback prediction

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U2 - 10.1016/j.matdes.2016.03.026

DO - 10.1016/j.matdes.2016.03.026

M3 - 文章

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SN - 0264-1275

VL - 99

SP - 57

EP - 67

JO - Materials and Design

JF - Materials and Design

ER -

A semi-analytical method for the springback prediction of thick-walled 3D tubes

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Keywords

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