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parameters have been applied in practice to assemble the 240-pin, 0.5mm pitch QFP. Key words: fine pitch; solder joint shape; nonlinear finite element analysis; thermal fatigue life CLC number: TG405... of QFP solder joint predicting under thermal cycling condition; 3) influence of some shape parameters on the thermal fatigue life of QFP solder joints analysis. 2 FINITE ELEMENT ANALYSIS......
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J. Cent. South Univ. Technol. (2009) 16: 0339-0343 DOI: 10.1007/s11771-009-0057-8 Parameter fitting of constitutive model and FEM analysis of solder joint thermal cycle reliability for lead... data. Furthermore, the Anand model was used in the FEM analysis to evaluate solder joint thermal cycle reliability. The results show that solder Sn-3.5Ag has a better creep resistance than solder......
: thermo-mechanical fatigue reliability; solder joints; plastic ball grid array; finite element analysis; Taguchi method; artificial neural network; particle swarm optimization  ...- mechanical fatigue reliability of solder joints. Plastic ball grid array(PBGA) component was used as test vehicle. Finite element analysis was used to simulate the thermo- mechanical fatigue......
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, the growth of Cu6Sn5 intermetallic compound at the interface of solder joint is hindered, and the thermal fatigue life of solder joint is increased by 2 times. The results of thermodynamic calculation...Effect of Lanthanum on Driving Force for Cu6Sn5 Growth and Improvement of Solder Joint Reliability 钱乙余1,马鑫2 (1.National Key Laboratory of Welding, Harbin Institute of Technology, Harbin 150001......
Finite element analysis of contact fatigue and bending fatigue of a theoretical assembling straight bevel gear pairDENG Song(邓松), HUA Lin(华林), HAN Xing-hui(韩星会), HUANG Song(黄松)(School of Automotive...:straight bevel gear; finite element method; contact fatigue; bending fatigue......
-long, SUO Guo-ching. Prediction of low-cycle contact fatigue life of sleeve–pin–shaft connections under axial and torsional cyclic loading [J]. International Journal of Fatigue, 2007, 29(5): 796-809. [22] SUN Deng-yue, ZHANG Yuan-fang, ZHA Xian-wen, LIU Wen-wu, MA Hui-wei, FAN You-qin. Analyzing of the thermal stress and fatigue life of the liquid core heavy reduction rolling mill’s roller [C......
railway catenary. Specific to the fatigue and residual life evaluation, MAI et al [3] took the extended finite element method to study the fatigue crack growth of contact wire; BI et al [19] analyzed... and minimum values of stress spectrum. To sum up, the researches mainly focus on the fatigue life analysis of contact wire, rather than that of steady arm or supporting device. Above all, the mathematical......