Fracture is the main failure mode during shear spinning. The investigation of Oyane criterion based on constitutive mode of compression plastic deformation is proposed according to the stress state of the deformation zone during shear spinning to realize the accurate prediction of fracture. The Oyane ductile criterion is coupled to the finite element model of shear spinning of DP600 high strength steel based on the secondary development through the subroutine VUSDFLD of software, ABAQUS. The damage integral calculation of Oyane ductile criterion and the judgment of fracture threshold during shear spinning are carried out. The spinning experiment with ellipsoid mandrel is carried out to verify the simulation results of fracture prediction. The results show that the fracture position during shear spinning predicted by Oyane criterion is located in the deformed zone near the deformation zone and distributed uniformly along the tangential direction, which is in good agreement with the experimental result. However, the relative error of the maximum thinning ratio between the simulation and experiment reaches to 33.8%. Therefore, a modified ductile fracture criterion based on the Oyane criterion for fracture prediction during shear spinning is proposed by considering the influence of mean stress and maximum shear stress on the ductile damage process. The results show that the relative error of maximum thinning ratio predicted by the modified criterion is only 15.9%, which is decreased by 17.9% compared with the Oyane ductile fracture criterion. The ductile fracture criterion applied to metal shear spinning is obtained, which can provide the theoretical basis for the accurate prediction of fracture during metal shear spinning.
XIA Qinxiang
,
ZHOU Likui
,
XIAO Gangfeng
,
CHENG Xiuquan
,
CHEN Weiping
. Ductile Fracture Criterion for Metal Shear Spinning[J]. Journal of Mechanical Engineering, 2018
, 54(14)
: 66
-73
.
DOI: 10.3901/JME.2018.14.066
[1] LI H,FU M W,LU J,et al. Ductile fracture:Experiments and computations[J]. International Journal of Plasticity,2011,27(2):147-180.
[2] 方刚,雷丽萍,曾攀. 金属塑性成形过程延性断裂的准则及其数值模拟[J]. 机械工程学报,2002,38(增刊):21-25. FANG Gang,LEI Liping,ZENG Pan. Criteria of metal ductile fracture and numerical simulation for metal forming[J]. Chinese Journal of Mechanical Engineering,2002,38(Supp.):21-25.
[3] MA H,XU W,JIN B C,et al. Damage evaluation in tube spinnability test with ductile fracture criteria[J]. International Journal of Mechanical Sciences,2015,100:99-111.
[4] WANG X,ZHAN M,GUO J,et al. Evaluating the Applicability of GTN damage model in forward tube spinning of aluminum alloy[J]. Metals,2016,6(6):136-150.
[5] ZHAN M,GU C,JIANG Z,et al. Application of ductile fracture criteria in spin-forming and tube-bending processes[J]. Computational Materials Science,2009,47(2):353-365.
[6] 吴卷,詹梅,蒋华兵,等. 一种改进的Lemaitre韧性断裂准则及其在旋压成形中的应用[J]. 航空学报,2011,32(7):1309-1317. WU Juan,ZHAN Mei,JIANG Huabing,et al. A modified Lemaitre ductile fracture criterion and its application to spinning forming[J]. Acta Aeronautica et Astronautica Sinica,2011,32(7):1309-1317.
[7] 张晶,李永华. 采用韧性断裂准则进行滚珠旋压裂纹损伤预测[J]. 沈阳理工大学学报,2013,32(5):9-11. ZHANG Jing,LI Yonghua. Prediction of crack in ball spinning process using fracture criterion[J]. Journal of Shengyang Ligong University,2013,32(5):9-11
[8] PINEAU A,BENZERGA A A,PARDOEN T. Failure of metals I:Brittle and ductile fracture[J]. Acta Materialia,2016,107:424-483.
[9] LI H,FU M W,LU J,et al. Ductile fracture:Experiments and computations[J]. International Journal of Plasticity,2011,27(2):147-180.
[10] 王成和,刘克璋,周路. 旋压技术[M]. 福州:福建科学技术出版社,2017. WANG Chenghe,LIU Kezhang,ZHOU Lu. Spinning technology[M]. Fuzhou:Fujian Science and Technology Press,2017.
[11] 包陈,蔡力勋,石凯凯,等. 金属材料准静态断裂性能标准测试技术研究进展[J]. 机械工程学报,2016,52(8):76-89. BAO Chen,CAI Lixun,SHI Kaikai,et al. Progress on the standard test technology of quasistatic fracture toughness for metallic materials[J]. Chinese Journal of Mechanical Engineering,2016,52(8):76-89.
[12] GRUBEN G,FAGERHOLT E,HOPPERSTAD O S,et al. Fracture characteristics of a cold-rolled dual-phase steel[J]. European Journal of Mechanics-A/Solids,2011,30(3):204-218.
[13] ZENG R,MA F,HUANG L,et al. Investigation on spinnability of profiled power spinning of aluminum alloy[J]. The International Journal of Advanced Manufacturing Technology,2015,80(1-4):535-548.
[14] XIA Q X,XIAO G F,LONG H,et al. A review of process advancement of novel metal spinning[J]. International Journal of Machine Tools and Manufacture,2014,85:100-121.
[15] 闻邦椿,张义民,鄂中凯,等. 机械设计手册[M]. 北京:机械工业出版社,2015. WEN Bangchun,ZHANG Yimin,E Zhongkai,et al. Mechanical,design handbook[M]. Beijing:China Machine Press,2015.
[16] 周立奎. 高强钢板剪切旋压成形韧性断裂准则及可旋性研究[D]. 广州:华南理工大学,2017. ZHOU Likui. Research on the ductile fracture criterion and spinnability of shear spinning for high strength steel[D]. Guangzhou:South China University of Technology,2017.
[17] XIA Q X,CHENG X Q,HU Y,et al. Finite element simulation and experimental investigation on the forming forces of 3D non-axisymmetrical tubes spinning[J]. International Journal of Mechanical Sciences,2006,48:726-735.
[18] XUE L. Constitutive modeling of void shearing effect in ductile fracture of porous materials[J]. Engineering Fracture Mechanics,2008,75(11):3343-3366.
[19] HUANG J K,DONG X H. A new ductile fracture criterion for various deformation conditions based on micro void model[J]. Journal of Iron and Steel Research,2009,16(5):92-97.
