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In this paper, computational analysis is performed on a rectangular plate made up of fibre- matrix with an interfaced circular section made up of carbon fiber. This analysis has proved very helpful in locating various level of thermal stress at different sections of the plate. These thermal stresses resulting due to the applied wide temperature range is visualized with the help of ABAQUS- CAE software...
In order to determine the accelerated test conditions, and clarify the internal thermal stress distribution of the accelerometers, ANSYS analyzed the effect of loading different temperature rates and wind speed on the internal temperature rate of accelerometers. And the ANSYS simulation result shows that, if the wind speed is constant and dose not exceed a certain value, the internal temperature rate...
The service life of hot forging die is mainly decided by Stresses, including thermal, mechanical and combined stress. Stress amplitude is affected by the material properties, such as specific heat capacity. The choice of die material is very importance for improving die service life. In order to identify the effect of specific heat capacity on die stress, a 2D FE model of cake shaped workpiece is...
At present, there are still some imported steam turbines which are originally designed to operate in throttling governing, which leads to the low efficiency when the steam turbine is working with part load. In order to enhance economical performance of steam turbine, it has to be transformed into nozzle governing. After changing throttling governing to nozzle governing for the steam turbine, the temperature...
Fine pitch 100-mum electroplated SnAg microbump interconnection technology is presented and discussed for use in microelectromechanical systems (MEMS) based 3-D stacks. Electrochemical deposition (ECD) of copper top side metallization (TSM) is compared to performance of nickel-copper TSM on substrate chips. Nickel-copper was selected for under bump metallization (UBM) of die chips. Lead free Sn3.5%Ag...
In this study the thermal impact characteristics by forest fire are extensively investigated using temperature controlled ovens. The test conditions for thermal impact damage are simulated according to the characteristics of natural forest fire. The test pieces are suspension porcelain insulators made by KRI in 2005 for transmission lines. In the thermal impact cycle tests with 300degC thermal impact...
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