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relationship of multiple circle model LIU Ping1, 2, LUO Qifeng3 (1. Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China; 2. School of Architecture...: Considering the composition of earthquake map in near site and simulation of ground motions for major earthquake, a multiple circle model was proposed. Taking the records from 7 provinces affected severely......
Finite element polycrystal model simulation of cold rolling textures in deformation processed two-phase Nb/Al metal-metal composites CHEN Li-qing(陈礼清)1, 2, KANETAKE Naoyuki2 (1. Institute of Metal... model (FEPM) was extended and applied to simulate the development of the cold rolling textures of matrix aluminum in deformation processed two-phase 10% and 20%Nb/Al(in volume fraction) metal-metal......
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the maximum rolling thickness. Not only the shape quality is guaranteed, but also the control of the strip cross-section crown is achieved when the thickness is large. The digestion ability...J. Cent. South Univ. Technol. (2011) 18: 1487-1492 DOI: 10.1007/s11771-011-0864-6 Preset model of bending force for 6-high reversing cold rolling mill based on genetic algorithm CAO Jian-guo(曹建国......
高分子聚合物熔体Cross黏度模型的改进杨晓东,刘保臣,刘春太,赵振峰,申长雨郑州大学橡塑模具国家工程研究中心摘 要:对传统的高聚物熔体Cross黏度模型进行改进研究.一方面采用新的数学表达式消除其非牛顿指数表达上的歧义性,将牛顿和非牛顿模型更好地统一在一个模型中,使得改进后的新模型定义更严谨.另一方面,采用分段函数精确表示低剪切速率时熔体黏度的牛顿区,并增加一个调控参数提高模型在非牛顿区的拟合能力,从而可以更好地逼近聚合物熔体的黏度曲线,提高拟合精度.关键词:高聚物熔体;黏度模型;Cross模型;数值模拟;......
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Effect of rolling process on microstructures and mechanical properties of AZ31B alloy sheets LE Qi-chi(乐启炽), ZHANG Zhi-qiang(张志强), CUI Jian-zhong(崔建忠) Key Lab of Electromagnetic Processing... temperature at 3, 6 and 16 m/min rolling speeds into 1 mm thickness. The results indicate that the microstructures achieved by rolling at low temperature or at low rolling speed are composed of many......