不同材料强化模型对QP钢回弹预测精度的理论及应用研究
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摘要
对第3代先进高强钢QP980和QP1180材料的4种强化模型参数进行了分析,基于特征帽型零件比较了模型的回弹预测精度,然后采用最优模型在某车型A柱零件上开展回弹分析并进行实际零件预测结果验证。研究结果表明:QP980和QP1180均表现出一定的包申格效应; Chaboche、NSK Swift和Y-U模型均能描述材料的包申格效应,但Y-U模型拟合效果最好,等向强化模型Swift不能描述包申格效应;比较4种模型对帽型零件的回弹计算结果和试验结果可知,Y-U模型预测精度最高;比较Y-U模型在A柱零件关键截面上回弹预测与试验结果可知,轮廓重合性较好,并在一些关键点进行比较,计算与实测误差较小,说明Y-U模型对该零件回弹表现出较高的预测精度。
The parameters of four hardening models for the third generation advanced high strength steel QP980 and QP1180 were analyzed,the springback prediction accuracy of the models was compared based on the characteristic hat shape part.Springback analysis of the A-pillar part was conducted to verify the accuracy of the optimum model.Results show that both QP980 and QP1180 show a certain Bauschinger effect.Chaboche,NSK Swift and Y-U models can describe the Bauschinger effect of the material while the equivalent strength Swift model cannot,and the Y-U model has the best fitting effect.By comparing the calculation results and test results of springback for hat shape parts,it can be known that Y-U model has the highest prediction accuracy.Material springback prediction with Y-U model and tested springback at key sections of A-pillar parts were compared,and the contour coincidence is good,also the simulation errors at key points are small,which show that the Y-U model has a high springback prediction accuracy.
The parameters of four hardening models for the third generation advanced high strength steel QP980 and QP1180 were analyzed,the springback prediction accuracy of the models was compared based on the characteristic hat shape part.Springback analysis of the A-pillar part was conducted to verify the accuracy of the optimum model.Results show that both QP980 and QP1180 show a certain Bauschinger effect.Chaboche,NSK Swift and Y-U models can describe the Bauschinger effect of the material while the equivalent strength Swift model cannot,and the Y-U model has the best fitting effect.By comparing the calculation results and test results of springback for hat shape parts,it can be known that Y-U model has the highest prediction accuracy.Material springback prediction with Y-U model and tested springback at key sections of A-pillar parts were compared,and the contour coincidence is good,also the simulation errors at key points are small,which show that the Y-U model has a high springback prediction accuracy.
引文
[1]钟茂莲.高强度汽车钢板冲压成形的主要问题及模具对策[J].精密成形工程,2014,6(3):20-24.ZHONG Maolian.Key problems of high-strength steel in stamping forming process and corresponding die countermeasures[J].Journal of Netshape Forming Engineering,2014,6(3):20-24.
[2]朱久发.高强度钢板在汽车车身上的应用及问题对策[J].武钢技术,2007,45(2):43-46.ZHU Jiufa.Problems encountered in application of high strength steel plates or sheets for automobile body and its countermeasures[J].Wuhan Iron and Steel Corporation Technology,2007,45(2):43-46.
[3]张旭,周杰.高强度钢后保险杠成形工艺优化及回弹控制[J].金属铸锻焊技术,2010,39(5):102-105.ZHANG Xu,ZHOU Jie.Optimization and springback control of rear bumper forming process[J].Hot Working Technology,2010,39(5):102-105.
[4]马晓春,沈卫兵.有限元数值模拟技术在汽车冲压件成形中的应用[J].浙江工业大学学报,2007,35(1):100-104.MA Xiaochun,SHEN Weibing.Application of numerical simulation of finite element in molding process of automobile pressing parts[J].Journal of Zhejiang University of Technology,2007,35(1):100-104.
[5]江煜煌.板料冲压成形及回弹有限元数值模拟分析研究[D].南京:南京理工大学,2007.JIANG Yuhuang.Sheet metal stamping and rebound finite element simulation analysis[D].Nanjing:Nanjing University of Science and Technology,2007.
[6]WAGONER R H,LIM H,LEE M G.Advanced issues in springback[J].International Journal of Plasticity,2013,45(45):3-20.
[7]CHABOCHE J L,ROUSSELIER G.On the plastic and viscoplastic constitutive equations,Part I and Part II[J].Journal of Pressure Vessel Technology,1983,105(2):4719-4754.
[8]肖煜中.金属宏观本构能量原理研究及其在板料冲压成形数值模拟中的应用[D].上海:上海交通大学,2013.XIAO Yuzhong.The research of energy principles in macroscopic constitutive modeling of metals and its application in the numerical simulation of sheet metal forming[D].Shanghai:Shanghai Jiao Tong University,2013.
[9]晏佳伟,胡启,王振振,等.不同硬化模型对第3代超高强度钢板冲压回弹预测的比较[J].上海交通大学学报,2017,51(11):1334-1339.YAN Jiawei,HU Qi,WANG Zhenzhen,et al.A comparison study of different hardening models in springback prediction for stamping of the third generation ultra-high strength steel[J].Journal of Shanghai Jiao Tong University,2017,51(11):1334-1339.
[10]CHEN J,XIAO Y,DING W,et al.Describing the non-saturating cyclic hardening behavior with a newly developed kinematic hardening model and its application in springback prediction of DPsheet metals[J].Journal of Materials Processing Technology,2015,215(1):151-158.
[11]YOSHIDA F,UEMORI T.Constitutive model of large-strain cyclic plasticity for orthotropically anisotropic materials[C]//Proceedings of the Annual Meeting of JSME/MMD.Japan,2002:131-132.
[12]YOSHIDA F,UEMORI T.A model of large-strain cyclic plasticity describing the bauschinger effect and work hardening stagnation[J].International Journal of Plasticity,2002,18:661-686.
[13]YOSHIDA F,UEMORI T.A model of large-strain cyclic plasticity and its application to springback simulation[J].International Journal of Mechanical Sciences,2003,45:1687-1702.
[14]SHI M F,ZHU X H,XIA C,et al.Determination of nonlinear isotropic/kinematic hardening constitutive parameters for AHSS using tension and compression tests[C]//NUMISHEET Conference.Interlaken,2008:1-5.
[15]YIN Q,TEKKAYA A E,TRAPHNER H.Determining cyclic flow curves using the in-plane torsion test[J].CIRP AnnalsManufacturing Technology,2015,64(1):261-264.
[2]朱久发.高强度钢板在汽车车身上的应用及问题对策[J].武钢技术,2007,45(2):43-46.ZHU Jiufa.Problems encountered in application of high strength steel plates or sheets for automobile body and its countermeasures[J].Wuhan Iron and Steel Corporation Technology,2007,45(2):43-46.
[3]张旭,周杰.高强度钢后保险杠成形工艺优化及回弹控制[J].金属铸锻焊技术,2010,39(5):102-105.ZHANG Xu,ZHOU Jie.Optimization and springback control of rear bumper forming process[J].Hot Working Technology,2010,39(5):102-105.
[4]马晓春,沈卫兵.有限元数值模拟技术在汽车冲压件成形中的应用[J].浙江工业大学学报,2007,35(1):100-104.MA Xiaochun,SHEN Weibing.Application of numerical simulation of finite element in molding process of automobile pressing parts[J].Journal of Zhejiang University of Technology,2007,35(1):100-104.
[5]江煜煌.板料冲压成形及回弹有限元数值模拟分析研究[D].南京:南京理工大学,2007.JIANG Yuhuang.Sheet metal stamping and rebound finite element simulation analysis[D].Nanjing:Nanjing University of Science and Technology,2007.
[6]WAGONER R H,LIM H,LEE M G.Advanced issues in springback[J].International Journal of Plasticity,2013,45(45):3-20.
[7]CHABOCHE J L,ROUSSELIER G.On the plastic and viscoplastic constitutive equations,Part I and Part II[J].Journal of Pressure Vessel Technology,1983,105(2):4719-4754.
[8]肖煜中.金属宏观本构能量原理研究及其在板料冲压成形数值模拟中的应用[D].上海:上海交通大学,2013.XIAO Yuzhong.The research of energy principles in macroscopic constitutive modeling of metals and its application in the numerical simulation of sheet metal forming[D].Shanghai:Shanghai Jiao Tong University,2013.
[9]晏佳伟,胡启,王振振,等.不同硬化模型对第3代超高强度钢板冲压回弹预测的比较[J].上海交通大学学报,2017,51(11):1334-1339.YAN Jiawei,HU Qi,WANG Zhenzhen,et al.A comparison study of different hardening models in springback prediction for stamping of the third generation ultra-high strength steel[J].Journal of Shanghai Jiao Tong University,2017,51(11):1334-1339.
[10]CHEN J,XIAO Y,DING W,et al.Describing the non-saturating cyclic hardening behavior with a newly developed kinematic hardening model and its application in springback prediction of DPsheet metals[J].Journal of Materials Processing Technology,2015,215(1):151-158.
[11]YOSHIDA F,UEMORI T.Constitutive model of large-strain cyclic plasticity for orthotropically anisotropic materials[C]//Proceedings of the Annual Meeting of JSME/MMD.Japan,2002:131-132.
[12]YOSHIDA F,UEMORI T.A model of large-strain cyclic plasticity describing the bauschinger effect and work hardening stagnation[J].International Journal of Plasticity,2002,18:661-686.
[13]YOSHIDA F,UEMORI T.A model of large-strain cyclic plasticity and its application to springback simulation[J].International Journal of Mechanical Sciences,2003,45:1687-1702.
[14]SHI M F,ZHU X H,XIA C,et al.Determination of nonlinear isotropic/kinematic hardening constitutive parameters for AHSS using tension and compression tests[C]//NUMISHEET Conference.Interlaken,2008:1-5.
[15]YIN Q,TEKKAYA A E,TRAPHNER H.Determining cyclic flow curves using the in-plane torsion test[J].CIRP AnnalsManufacturing Technology,2015,64(1):261-264.