Forming Limit  Prediction  of  Tailor-welded  Blanks  Based  on GTN  Damage Model

Abstract

Abstract:

The GTN damage model was established to predict the forming limit of TWBs,and the damage parameters were determined by the use of finite element inverse method. Hemispherical punch bulging test process was simulated by the finite element software ABAQUS and coupled the Mises yield criterion with GTN damage model. Experiments of hemispherical punch bulging test were designed,which changed specimen width to obtain complete forming limit diagram of TWBs in different strain conditions.Meanwhile, the prediction and experimental results were compared to validate the accuracy of GTN damage model.

Key words: tailor-welded , blanks(TWB);Gurson-Tvergaard-Needleman(GTN) , model;forming , limit , diagram;hemispherical punch bulging test

摘要：

建立了从细观损伤角度预测拼焊板成形极限的Gurson-Tvergaard-Needleman(GTN)损伤模型,用有限元逆向法确定了损伤模型中的各损伤参数。采用有限元软件ABAQUS耦合基于Mises屈服准则的弹塑性GTN损伤模型，对拼焊板半球凸模胀形过程进行了数值模拟。设计了拼焊板半球凸模胀形物理试验，试验过程中通过改变试件的宽度得到了不同应变状态下完整的拼焊板成形极限图，并与GTN细观损伤模型预测到的拼焊板成形极限图进行对比分析，验证了GTN细观损伤模型预测拼焊板成形极限图的准确性。

关键词: 拼焊板, GTN模型, 成形极限图, 半球凸模胀形

CLC Number:

TG386

Ma Xiangdong, Guan Yingping. Forming Limit Prediction of Tailor-welded Blanks Based on GTN Damage Model[J]. China Mechanical Engineering, 2015, 26(22): 3057-3063.

马向东, 官英平. 基于GTN细观损伤模型的激光拼焊板成形极限预测[J]. 中国机械工程, 2015, 26(22): 3057-3063.

References

[1]Merklein M,Johannes M,Lechner M,et al.A Review on Tailored Blanks-Production, Application and Evaluation[J].Journal of Materials Processing Technology,2014,214(2):151-164.
[2]Abbasi M,Ketabchi M,Ramazani A,et al.Investigation into the Effects of Weld Zone and Geometric Discontinuity on the Formability Reduction of Tailor Welded Blanks[J].Computational Materials Science,2012,59:158-164.
[3]朱元右,姜银方,杨继昌,等.拼焊板冲压成形中的焊缝移动分析[J].中国机械工程,2006,17(15):1618-1622.
Zhu Yuanyou,Jiang Yinfang,Yang Jichang,et al.Analysis of Weld-line Movement in   Tailor-welded   Blanks’   Formation[J].China Mechanical Engineering,2006,17(15):1618-1622.
[4]宋燕利,华林.车身覆盖件拼焊板冲压成形技术的研究现状及发展趋势[J].中国机械工程,2011,22(1):111-118.
Song Yanli,Hua Lin.Current Research Status and Trends of Tailor Welded Blanks Applied in Auto-body Stamping[J].China Mechanical Engineering,2011,22(1):111-118.
[5]Mohebbi   M S,Akbarzadeh   A.Prediction of Formability of Tailor Welded Blanks by Modification of MK Model[J]. International Journal of Mechanical Sciences,2012,64(1):44-51.
[6]Korouyeh R S,Naeini H M,Torkamany M J,et al.Experimental and Theoretical Investigation of Thickness Ratio Effect on the Formability of Tailor Welded Blank[J].Optics & Laser Technology,2013,51:24-31.
[7]Lee W,Chung K H,Kim D,et al.Experimental and Numerical Study on Formability of Friction Stir Welded TWB Sheets Based on Hemispherical Dome Stretch Tests[J].International Journal of Plasticity,2009,25(9):1626-1654.
[8]Chu C C.An Investigation of the Strain Path Dependence of the Forming Limit Curve[J]. International Journal of Solids Structure, 1982, 18(3):205-215.
[9]Zhalehfar F,Hashemi R,Hosseinipour S J.Experimental and Theoretical Investigation of   Strain Path Change Effect on Forming Limit Diagram of AA5083[J].International Journal of Advanced Manufacturing Technology, 2015, 76(5/8):1343-1352.
[10]Arrieux R.Determination and Use of the Forming Limit Stress Diagrams in Sheet Metal Forming[J].Journal of Materials Processing Technology,1995,53(1/2):47-56.
[11]Arrieux R.Determination and Use of the Forming Limit Stress Surface of Orthotropic Sheets[J].Journal of Materials Processing Technology,1997,64(1/3):25-32.
[12]Matin P H,Smith L M,Petrusevski S.A Method for Stress Space Forming Limit Diagram Construction for Aluminum Alloys[J]. Journal of Materials Processing Technology,2006,174(1/3):258-265.
[13]Panich S,Barlat F,Uthaisangsuk V,et al.Experimental and Theoretical Formability Analysis Using Strain and Stress Based Forming Limit Diagram for Advanced High Strength Steels[J].Materials and Design,2013,51:756-766.
[14]Bandyopadhyay K,Basak S,Panda S K,et al.Use of Stress Based Forming Limit Diagram to Predict Formability in Two-stage Forming of Tailor Welded Blanks[J].Materials and Design,2015,67:558-570.
[15]Gurson A L.Continuum Theory of Ductile Rupture by Void Nucleation and Growth:Part I-Yield Criteria and Flow Rules for Porous Ductile Media[J].Journal of Engineering Materials and Technology,1977,99(1):2-15.
[16]Tvergaard V,Needleman A.Analysis of the Cup-cone Fracture in a Round Tensile Bar[J].Acta Metallurgica,1984,32(1):157-169.
[17]Needleman A,Tvergaard V.An Analysis of Ductile Rupture in Notched Bars[J].Journal of the Mechanics and Physics of Solids, 1984,32(6):461-490.
[18]Liu J G, Liu W,Xue W.Forming Limit Diagram Prediction of AA5052/Polyethylene/AA5052 Sandwich Sheets[J].Materials and Design, 2013, 46:112-120.
[19]Chen Z Y,Dong X H.The GTN Damage Model Based on Hill’48 Anisotropic Yield Criterion and Its Application in Sheet Metal Forming[J]. Computational Materials Science,2009, 44(3):1013-1021.
[20]Mahnken R.Aspects on the Finite-element Implementation of the Gurson Model Including Parameter Identification[J]. International Journal of Plasticity,1999,15(11):1111-1137.
[21]Sun D Z,Siegele D,Voss B,et al.Application of Local Damage Models to the Numerical Analysis of Ductile Rupture[J].Fatigue & Fracture of Engineering Materials & Structures,1989,12(3):201-212.
[22]Steglich D,Siegmund T,Brocks W.Micromechanical Modeling of Damage Due to Particle Cracking in Reinforced Metals[J]. Computational Materials Science,1999,16(1/4):404-413.

Forming Limit Prediction of Tailor-welded Blanks Based on GTN Damage Model

基于GTN细观损伤模型的激光拼焊板成形极限预测

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics