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Effects of coil length on tube compression in electromagnetic forming YU Hai-ping(于海平), LI Chun-feng(李春峰) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin...; Abstract: The effects of the length of solenoid coil on tube compression in electromagnetic forming were investigated either by theory analysis or through......
Tendency of homogeneous radial deformation during electromagnetic compression of aluminium tube YU Hai-ping(于海平)1, LI Chun-feng(李春峰)1, LIU Da-hai(刘大海)1, MEI Xian(梅 险)2 1. School of Materials... electromagnetic compression of aluminium tube was investigated through the design optimization method based on sequential coupling numerical simulation and experiments. The results show that the tendency......
线性方程组,需要借助多次迭代求解,无法给出临界失稳压力的解析表达式,不适合工程应用中起皱规律的探讨研究.本文作者为探求管材材料性能和成形几何条件等主要参数对缩径成形过程中弹塑性失稳的影响规律,忽略管材初始缺陷的影响. 图1 管坯外压缩径原理图 Fig. 1 Schematic diagram of tube outer pressure compression...起皱失稳的影响. 图10 模具照片及缩径工艺原理示意图 Fig. 10 Die photo (a) and schematic diagram of principle of SGMF tube outer pressure compression forming (b) 2.3 试验结果 工艺试验得到的成形零件照片如图11所示,图中L为缩径区高度,N为皱纹波......
Crushing Characteristics of Filament Wound Carbon Fiber/Epoxy Tube under Quasi-static Compression Condition朱锦明,LI Wenbin,YANG Guang,贾晓龙,YANG XiaopingState Key Laboratory of Organic-Inorganic...) on crushing characteristics of filament wound CFRP tube under quasi-static compression conditon. It was found that CFRP tubes sequentially showed the brittle fracturing mode, the local buckling......
-filled square tube was the same as that of the empty tube, but the fold number of foam-filled square tube was more than that of the empty tube. The longitudinal compression load and energy absorption..., the compression load and energy absorption ability of foam-filled square tubes were significantly lower than those in longitudinal direction. Key words: aluminum foam; foam-filled square tube; compression load......
compressive strains, hoop and radial tension strains. Because the tube bending forming mainly depends on the tube material’s compression and elongation deformation, the tangent stress σθ and strain εθ on the compression (intrados) and elongation (extrados) regions are regarded as the maximum principle stress and strain. Due to the large relative tube diameter D/t, the normal stress can be neglected. So......
that of the monolithic RC column and increases with the increase of steel ratio of the core steel tube. Compared with the RC column, the maximum increase ratio of the axial compression capacity of the PCSTRC... compression capacity of the PCSTRC column decreases by 15.7% compared with the monolithic CSTRC column with the same steel ratio of core steel tube, while the ultimate axial deformation capacity......
of steel-concrete composite beams and concrete filled steel tube columns. The axial compression ratio of column, slenderness ratio and linear stiffness ratio of beam to column were selected as main design... influence rule on seismic behaviors of composite frame.Key words:composite frame; steel-concrete composite beam; concrete filled steel tube column; seismic behavior; axial compression ratio......
区间中间截面轮廓曲线如图4所示. 图1 模具照片及缩径工艺原理示意图 Fig. 1 Die photo (a) and schematic diagram (b) of principle of SGMF tube outer pressure compression forming 图2 不同缩径区高度的成形零件图 Fig. 2 Forming... Chang-cai. Theory and experimental research on outer pressure compression forming of thin metal tube part[J]. The Chinese Journal of Nonferrous Metals, 2018, 28(3): 586-593. [17] 杜 冰, 关风龙, 张 鑫, 谢 军, 赵......
Constitutive modeling of compression behavior of TC4 tube based on modified Arrhenius and artificial neural network modelsZhi-Jun Tao,He Yang,Heng Li,Jun Ma,Peng-Fei GaoState Key Laboratory.... In this study, isothermal compression tests of TC4 tube alloy were performed from 573 to 873 K with an interval of 100 K and strain rates of 0.001, 0.010 and0.100 s-1. The prediction of flow behavior......