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何维均,袁改焕,栾佰峰,王练,储林华,刘庆.Zr-4合金管材皮尔格轧制过程数值模拟分析:宏观模型的建立、验证及塑性变形分析[J].稀有金属材料与工程(英文),2018,47(1):82~88.[Weijun He,Gaihuan Yuan,Baifeng Luan,Lian Wang,Linhua Chu and Qing Liu.On the Pilger Rolling of Zr-4 Alloy: Finite Element Modeling and Plastic Deformation Behaviors[J].Rare Metal Materials and Engineering,2018,47(1):82~88.]
On the Pilger Rolling of Zr-4 Alloy: Finite Element Modeling and Plastic Deformation Behaviors
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Received:January 18, 2016  Revised:May 15, 2016
DOI:
Key words: Zirconium alloy  Pilger rolling  Finite element modeling  Plastic deformation behavior
Foundation item:创新研究群体科学基金(51421001);重庆市基础与前沿计划项目(cstc2014jcyjA50022);中央高校基本科研业务(106112015CDJXY130002)
Author NameAffiliation
Weijun He,Gaihuan Yuan,Baifeng Luan,Lian Wang,Linhua Chu and Qing Liu  
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Abstract:
      Pilger rolling process has a specific influence on the mechanical properties and texture of zirconium alloy cladding tube. Due to its complexity, experimental research on the Pilger rolling process would be very costly. Therefore, a 3D finite element model was built to simulate Pilger rolling with ABAQUS/standard package. Simulation of a full pass of Pilger rolling of Zr-4 alloy tube, including a series of forward strokes and backward strokes, was carried out. The predicted tube sizes agree well with the experimental results. Additionally, the simulated rolling force also matches well with the force calculated by classic empirical formula, which validates the accuracy of the proposed model. The simulation results show that the stress and strain states in groove-side are different from that in groove-bottom. Moreover, large shear deformation happen in the rolled tube. The simulated shear strain displays substantial fluctuations during rolling, which are attributed to the cyclic position change of element (material point) with respect to the groove-side.