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Effects of material properties on power spinning process of parts with transverse inner rib MA Fei(马 飞)1, 2, YANG He(杨 合) 1, ZHAN Mei(詹 梅) 1 1. State Key Laboratory of Solidification Processing...: Material properties of blank have a great effect on power spinning process of aluminum alloy parts with transverse inner rib. By using finite element(FE) and Taguchi method, the effects......
Finite element modeling of power spinning of thin-walled shell with hoop inner rib BAI Qian(白 倩), YANG He(杨 合), ZHAN Mei(詹 梅) School of Materials Science and Engineering, Northwestern...; Abstract: A 3D elasto-plastic finite element(FE) model of power spinning of thin-walled aluminum alloy shell with hoop inner rib......
as well as the flow rule of the metal in the deformation zone. In this work, specimens for microscopic observation were prepared from the original tubular blank and the various sections of the inner rib... spinning passes. What’s more, as shown in zone F in Fig.5(b) as well as in zone H in Fig.5(c), it is at the two corners of the inner rib connected with the wall of the spun part that the grain flow line......
ribs is simulated. Fig.7 shows the curves of the height of inner rib with respect to wall thickness reduction. It can be seen from the curves that increasing the wall thickness reduction leads... on height of inner rib 6 Conclusions 1) Combining the direct iteration method with the Newton-Raphson iteration technique presents a good approach to obtain the accurate solution and enhance......
Geomechanical design of a room and rib pillar granite mineDaniele Peila,Claudia Guardini,Sebastiano Pelizza摘 要:The geomechanical and stability design... by the rooms and rib pillars method. The rooms are 12 m wide while the pillars are 11 m wide and they cross the main discontinuity set of the rock mass in the perpendicular direction. To verify......
J. Cent. South Univ. (2020) 27: 3213-3226 DOI: https://doi.org/10.1007/s11771-020-4541-5 Local corrosion characteristics of a graphene-oxide-modified inner coating LIAO Ke-xi(廖柯熹)1, LI Xiao-xiao(李肖... characteristics of a graphene-oxide-modified inner coating. The effect of chloride concentration on the corrosion of the damaged inner coating was studied. The effects of chloride ions on damaged internal coatings......
Performance evaluations on inner vs. outer decomposition first parallel join algorithms for two nested loop joinsSeo-Young NOH1, Heejun YOON1, Il-Yeon YEO1, Yoon-su JEONG2, Hyungwoo PARK1(1. National..., decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms......
J. Cent. South Univ. (2012) 19: 1932-1937 DOI: 10.1007/s11771-012-1228-6 Calculation on inner wall temperature in oil-gas pipe flow DUAN Ji-miao(段纪淼)1, WANG Wei(王玮)1, ZHANG Yu(张宇)2, LIU Hui... equation, into the conjugated hydraulic and thermal computation have been found to improve the efficiency of algorithm. Then, the inner wall temperature of gas-liquid flow was calculated by using......
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Inner and outer pressure forming of nickel based super-alloy thin-walled part with variable diameter sections WANG Zhong-jin(王忠金), GAO Tie-jun(高铁军) School of materials science and engineering... by using inner and outer pressure with the visco-elasto-plastic pressure-carrying medium at room temperature, and the principle of the method was provided. Experiments and FE simulations were carried......
