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Study on Nonuniform Deformation of Tailor Rolled Blank During Uniaxial Tension

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文摘 The deformation characteristics of tailor rolled blank (TRB) in the course of uniaxial tension were studied by means of analysis, test and simulation. The mechanical analytical model of TRB during uniaxial tension was set up, and the deformation formulae for the thinner side and for the thicker side were derived to quantify the deformation of TRB. On this basis, uniaxial tension tests on TRB and ordinary blanks (the thinner side and the thicker side of TRB) were conducted. Lagrange polynomial interpolation method was adopted to construct the stress–strain fields of unannealed and annealed TRBs for solving TRB material parameters, and then, uniaxial tension simulation on TRB was completed. Deformations and properties of unannealed TRB were compared with those of annealed TRB, and the thinner side and the thicker side were also compared. Finally, the research results were explained by metallurgical structure. The results show that nonuniform deformation happens in TRB during uniaxial tension, and the necking occurs on the thinner side. The agreement of analysis, test and simulation confirms the correctness of the analytical model and the deformation formulae. The findings of this paper can lay the foundation for the future study on TRB stamping formability and provide a way for TRB modeling.
来源 Acta Metallurgica Sinica(English Letters) ,2015,28(9):1198-1204 【核心库】
DOI 10.1007/s40195-015-0313-x
关键词 Tailor rolled blank (TRB) ; Nonuniform deformation ; Uniaxial tension ; Annealing ; Metallographical
地址

1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110819  

2. Research Institute of Science and Technology, Northeastern University, Shenyang, 110819  

3. School of Automotive Engineering, Dalian University of Technology, Dalian, 116024

语种 英文
文献类型 研究性论文
ISSN 1006-7191
学科 金属学与金属工艺
基金 国家自然科学基金 ;  the Fundamental Research Funds for the Central Universities ;  the Science and Technology Research Project for Higher School of Hebei Province
文献收藏号 CSCD:5543518

参考文献 共 17 共1页

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