Transactions of Materials and Heat Treatment

Title：Research on applicability of different specimens to springback simulation of rotary-draw bending for TA2/T2 bimetal composite tube

Authors： Zhu Yingxia Shi Wei Tu Wenbin Guo Yuan Wang Yun

Unit： Jiangsu University

KeyWords： TA2/T2 bimetal composite tube rotary-draw bending mechanical properties springback uniaxial tensile constitutive model

ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(12):102-109

Abstract：

In order to accurately simulate the rotary-draw bending process of TA2/T2 bimetal composite tube, the uniaxial tensile experiments with four sets of specimens were conducted respectively, namely, tube arc specimen, single layer round tube specimen, sheet metal specimen and bimetal composite round tube specimen, and the material constitutive models of TA2/T2 bimetal composite tube based on the above four sets of specimens were established. Then, a reverse verification finite element model of the whole rotary-draw bending-springback process for TA2/T2 bimetal composite tube was established to compare the accuracy of the material constitutive models obtained from the four sets of specimens. The research results shows that all the plastic stress-plastic strain curves obtained by the four sets of specimens are described by power exponential function σ=B(ε0+ε)n, the springback angles predicted by the constitutive model of the single layer round tube specimen are the closest to the experimental results, and the results are reliable with the average error of 530% and the maximum error of 963%. Furthermore, the average errors of springback prediction are 1432% and 1542% respectively and the maximum errors are 1946% and 2251% respectively by the material constitutive models of tube arc specimen and sheet metal specimen, and the prediction accuracy of the springback angle is the lowest when the material constitutive model of the bimetal composite round tube specimen is used. Therefore, the constitutive model of the single layer round tube specimen more accurately describes the material state of the composite tube during the rotary-draw bending process. In addition, the springback decreases with the increasing of elastic modulus and hardening index and increases with the increasing of strength coefficient of covered tube and based tube.

Funds：

国家自然科学基金资助项目(51601070)；江苏省博士后科学基金(1501099B)；江苏大学高级人才科研启动基金(14JDG135)

朱英霞(1986-)，女，博士，讲师 E-mail：xia166109@163com

Reference：

［1］朱英霞, 熊杭锋, 陈炜, 等. 异质双金属复合管的弯曲工艺研究进展
［J］. 精密成形工程, 2016, 8(6): 8-14.

Zhu Y X, Xiong H F, Chen W, et al. Research progress for bending process of dissimilar material bimetallic composite tube
［J］. Journal of Netshape Forming Engineering, 2016, 8(6): 8-14.

［2］季策, 黄华贵. 双金属复合管复合机理及制备工艺研究进展
［J］. 特种铸造及有色合金, 2018, 38(12): 1300-1306.

Ji C, Huang H G. Research progress in bonding mechanism and preparation process of bimetallic clad pipes
［J］. Special Casting & Nonferrous Alloys, 2018, 38(12): 1300-1306.

［3］薛凤梅, 李付国, 范娟,等. 7050-T7451铝合金含孔连接板件的拉伸性能与断裂韧性模拟分析与实验研究
［J］. 稀有金属材料与工程, 2013, 42(9):1767-1772.

Xue F M, Li F G, Fan J, et al. Experiments and simulations on tensile properties and fracture toughness of 7050-T7451 aluminum alloy hole specimens
［J］. Rare Metal Materials and Engineering，2013, 42(9):1767-1772.

［4］张稳, 鄂大辛,高志纯.5A06管材力学性能测试及其缩口成形性的有限元分析
［J］.精密成形工程,2017,9(1): 41-46.

Zhang W, E D X, Gao Z C. Mechanical property testing and finite element analysis of nosing formability of 5A06 tube
［J］. Journal of Netshape Forming Engineering, 2017, 9(1): 41-46.

［5］邓爱林, 薛松,郭瑞东.基于拉伸试验的SPCC、SPCD冷轧钢板成形性能的研究
［J］.热加工工艺,2018,47(19): 125-128.

Deng A L, Xue S, Guo R D. Study on formability of SPCC and SPCD cold rolled steel sheets based on tensile test
［J］. Hot Working Technology, 2018, 47(19): 125-128.

［6］Zhu Y X, Liu Y L, Yang H, et al. Development and application of the material constitutive model in springback prediction of coldbending
［J］. Materials & Design, 2012, 42: 245-258.

［7］Huang T, Zhan M, Yang H, et al. A constitutive model for anisotropic tubes incorporating the variationof contractile strain ratio with deformation
［J］. International Journal of Mechanical Sciences, 2015, 90：33-43.

［8］Juan L, Xin X, Frederic B, et al.Material modelling and springback analysis for multi-stage rotary draw bendingof thinwalled tube using homogeneous anisotropic hardening model
［J］. Procedia Engineering, 2014, 81: 1228-1233.

［9］Juan L, Xin X, Myoung G L, et al. On twist springback prediction of asymmetric tube in rotary draw bending with different constitutive models
［J］. International Journal of Mechanical Sciences，2014, 89：311-322.

［10］Ma J, Yang H, Li H, et al. Springback prediction of titanium tube bending considering Bauschinger effect and Young′s modulus variation
［J］. Journal of Physics: Conference Series, 2016, 734(3)：1-4.

［11］Hu X, Diao K S, Li Y B. Application and comparison of different elastoplastic constitutive models for springback simulation of aluminum sheet forming
［J］. Baosteel Technical Research, 2016, 10(3):42-48.

［12］吕海源. 金属复合管弯曲过程数值模拟与实验验证
［D］. 上海：上海交通大学,2008.

Lyu H Y. Numerical Simulation and Experimental Verification of Twolayered Tube Bending
［D］. Shanghai：Shanghai Jiao Tong University, 2008.

［13］郭训忠, 陶杰,唐巧生,等.TA1-Al双金属复合管冷推弯模拟及试验
［J］.中国有色金属学报,2012,22(4):1053-1062.

Guo X Z, Tao J, Tang Q S, et al. Cold pushbending simulation and experiment on TA1Al bimetallic clad tube
［J］. The Chinese Journal of Nonferrous Metals, 2012, 22(4): 1053-1062.

［14］李艳阳, 皇涛,郭俊卿,等.材料参数波动对钛-铝-不锈钢复合板V型弯曲回弹的影响
［J］.锻压技术,2019,44(8):18-25.

Li Y Y, Huang T, Guo J Q, et al. Influence of material parameter fluctuation on Vbending springback for titaniumaluminiumstainless steel laminated composite sheet
［J］. Forging & Stamping Technology, 2019, 44 (8): 18-25.

［15］李和平. 对金属材料室温拉伸试验方法标准GB/T 2281—2010及ISO 6892-1:2016的修订建议
［J］.理化检验：物理分册,2018,54(9):621-628,646.

Li H P. Revision recommendations of GB/T 2281—2010 and ISO 6892-1:2016 for tensile test method standards of metallic materials at room temperature
［J］. Physical Testing and Chemical Analysis, 2018,54(9):621-628,646.

［16］彭鸿博, 张宏建.金属材料本构模型的研究进展
［J］.机械工程材料, 2012, 36(3): 5-10.

Peng H B, Zhang H J. Research development of the constitutive models of metal materials
［J］. Materials for Mechanical Engineering, 2012, 36(3): 5-10.

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