ESTABLISHMENT OF SPRINGBACK PREDICTION MODEL FOR THE ROTARY-DRAW BENDING OF THIN-WALLED RECTANGULAR TUBE CONSIDERING VARIATION OF YOUNG'S MODULUS

被引：0

作者：

Dong, W. Q. ^{[1
]}

Liu, Y. L. ^{[1
]}

Zhao, G. Y. ^{[1
]}

Yang, H. ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China

来源：

ENGINEERING PLASTICITY AND ITS APPLICATIONS | 2010年

基金：

中国国家自然科学基金;

关键词：

Thin-walled rectangular Tube; Rotary-draw bending process; Young's modulus; Numerical simulation; Springback; SIMULATION;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Springback is one of the main defects affecting the forming precision of 3A21 thin-walled rectangular tube in rotary-draw bending process. The material hardening mode and Young's modulus influence the springback prediction greatly, while the Young's modulus changes versus plastic strain rather than a constant. Hence, the variation of the Young's modulus has been taken into account in the springback analysis to improve the springback prediction precision. Based on Von-Mises yield function and Swift isotropic hardening model, a new material constitutive model is developed considering the variation of Young's modulus. Then, a springback prediction model is established using this new constitutive law. Furthermore, the reliability of the model is validated experimentally. Comparisons between simulation results and experimental data show that the prediction model with the new constitutive law is able to predict the springback significantly more accurately.

引用

页码：188 / 194

页数：7

共 8 条

[1] Research on the springback of thin-walled tube NC bending based on the numerical simulation of the whole process [J].

Gu, R. J. ;

Yang, H. ;

Zhan, M. ;

Li, H. ;

Li, H. W. .

COMPUTATIONAL MATERIALS SCIENCE, 2008, 42 (04) :537-549

[2]

Li Xue-chun, 2002, Chinese Journal of Nonferrous Metals, V12, P701

[3]

[李雪春 Li Xuechun], 2002, [材料科学与工艺, Material Science and Technology], V10, P277

[4] On the necessity of taking into account the variation in the Young modulus with plastic strain in elastic-plastic software [J].

Morestin, F ;

Boivin, M .

NUCLEAR ENGINEERING AND DESIGN, 1996, 162 (01) :107-116

[5] Finite element simulation of springback for a channel draw process with drawbead using different hardening models [J].

Taherizadeh, Aboozar ;

Ghaei, Abbas ;

Green, Daniel E. ;

Altenhof, William J. .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2009, 51 (04) :314-325

[6]

Xue L., 2000, J HARBIN I TECHNOLOG, V32, P54

[7] A constitutive model for spring-back prediction in which the change of Young's modulus with plastic deformation is considered [J].

Zang, S. L. ;

Liang, J. ;

Guo, C. .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2007, 47 (11) :1791-1797

[8] Three-dimensional finite-elements modeling and simulation of rotary-draw bending process for thin-walled rectangular tube [J].

Zhao, G. Y. ;

Liu, Y. L. ;

Yang, H. ;

Lu, C. H. ;

Gu, R. J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2) :257-261

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