کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
787920 | 1466124 | 2009 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Green's function method with consideration of temperature dependent material properties for fatigue monitoring of nuclear power plants Green's function method with consideration of temperature dependent material properties for fatigue monitoring of nuclear power plants](/preview/png/787920.png)
In this paper, a method to consider temperature dependent material properties when using the Green's function method is proposed by using a numerical weight function approach. This is verified by using detailed finite element analyses for a pressurizer spray nozzle with various assumed thermal transient load cases. From the results, it is found that the temperature dependent material properties can significantly affect the maximum peak stresses and the proposed method can resolve this problem with the weight function approach. Finally, it is concluded that the temperature dependency of the material properties affects the maximum stress ranges for a fatigue evaluation. Therefore, it is necessary to consider this effect to monitor fatigue damage when using a Green's function method for the real operating conditions in a nuclear power plant.
Journal: International Journal of Pressure Vessels and Piping - Volume 86, Issues 2–3, February–March 2009, Pages 187–195