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. The equivalent plastic strain calculated by the FEA proved that higher values of strain are imposed to the sample in the TE process. The strain distribution for the TE sample at the final stage... the FEA part of this study, a commercial elasto-plastic finite element analysis program ABAQUS/Explicit Simulation was employed to evaluate the plastic deformation behavior of the material during TE......
result based on this method is quite similar to that of simulation by the finite element analysis (FEA) software of Ansys in theory. This measurement is very useful for measuring temperature... at different widths and spaces with the finite element analysis (FEA) tool[17]. When the widths of heater, signal electrode and space were presumed as 50 μm, 50 μm, 25 μm respectively, the simulation results......
behaviour of spray particles impacting upon a substrate under the oblique impact condition in cold spraying was investigated using finite element analysis(FEA) method. The effect of incidence angle... element(FEA) program LS-DYNA. 2 Numerical modelling 2.1 Numerical method The impacting behaviour of particle on a substrate is modelled using an explicit FEA program LS-DYNA. The Lagrangian......
to validate the correctness of the FEA model by contrast with grinding force. The validation result shows that the FEA model can well describe the single grit grinding process. Then the grinding force... of the FEA model, while the simulation with alumina grit is to study the evolution of multi-physics fields during the real grinding process of steam turbine. It is extremely difficult to manufacture......
of fiber reinforced polymer (FRP)-to-concrete interface more accurately. A finite element analysis (FEA) was performed for preliminarily evaluating the suitability of the proposed conceptual double pull specimen. Through the FEA, it was indicated that the FRP-to-concrete interface of the proposed conceptual specimen might subject to a much higher load level than that of the most commonly used......
component with rib, mechanical analysis and finite element analysis (FEA) were conducted to investigate the rib buckling mechanics conditions. Based on lath-beam assumption, buckling Euler force... expiation ratio can reach 20%. According to FEA, the effects of rib height and inner radius on buckling degree were studied and the threshold values of both rib height and inner radius were given......
扩散焊接钨/钢接头残余应力的数值模拟马运柱,刘昊阳,刘文胜,蔡青山,余 强,刘书华,伍 镭(中南大学 粉末冶金研究院,长沙 410083)摘 要:采用有限元法分析钨/钢扩散焊接头残余应力,并探讨添加钒/镍和钒/铜复合中间层对钨/钢扩散焊接头残余应力分布的影响.结果表明:钨/钢扩散焊接头存在较大的残余应力,靠近中间层附近的钨处存在极大的径向压应力,而靠近中间层附近的钢处和整个中间层区域均存在较大径向拉应力;钨/钢直接扩散焊接头的残余应力极大,钨/钒/镍/钢扩散焊接头的残余应力有所降低,钨/钒/铜/钢扩散焊接头残余应力最小;接头力学性能及断裂特征验证了有限元计算结果的准确性.关键词:钨;钢;残余应......
element analysis (FEA). As a result, the thrust of the optimal model is slightly decreased by 1.97% compared with the basic model, and the detent force of the optimal model is greatly decreased... two series winding. Also, the maximum thrust is produced when the ratio of stator slot to tooth is 1:2, as determined by finite element analysis (FEA), because the flux linkage exists largely......
平板流铸工艺中冷却辊的温度场数值模拟郭茜,严密浙江大学摘 要:采用有限元分析方法(Finite Element Analysis,FEA)对平板流铸工艺(Planar-flow Melt Spinning,PFMS)生产非晶带材过程中的冷却辊进行了稳态温度场数值模拟,获得了冷却辊温度场及其热流的分布特点,并探讨了辊外径,辊厚,辊速3个参数对辊表面温度的影响规律.结果表明:增大辊外径,减小辊厚,降低辊速,均有助于降低辊面温度.由正交试验结果可知,对辊外表面温度的影响作用由大到小的顺序依次为辊厚,辊速,辊外径;对辊内表面温度的影响作用由大到小的顺序依次为辊速,辊外径,辊厚.最后通过综合平衡分析,得出了能将辊面温度控制在目标范围内的参数优化设计方案.此项研究为非晶带材平板流铸成形的模具设计及工艺优化实践提供......
剪切载荷作用下复合材料挖补修理层合板试验及有限元分析蓝元沛,徐吉峰,杜奎北京民用飞机技术研究中心摘 要:为了确定剪切载荷作用下含非穿透损伤复合材料挖补修理层合板的破坏模式和抗剪切能力,进行了复合材料挖补修理层合板的剪切试验,并与未损伤复合材料层合板进行对比.试验结果表明,复合材料挖补修理后的层合板具有较高的强度恢复率,且不影响层合板的后屈曲承载能力.同时,建立了剪切载荷作用下复合材料挖补修理层合板的有限元分析(FEA)模型,复合材料母板和补片采用了三维Hashin准则来判定材料失效,母板层与层之间采用零厚度界面单元以有效模拟剪切载荷作用下复合材料母板上,下子板之间的分层.该模型得到的破坏模式与试验结果基本相符.由于挖补修理的设计与工艺复杂性,理论模拟的破坏载荷与试验结果虽不能完全吻合,但其最大15%左......