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工程力学  2013 

反应堆压力容器压力-温度限值曲线参数敏感性分析

DOI: 10.6052/j.issn.1000-4750.2011.08.0555, PP. 394-399

Keywords: 反应堆压力容器,压力温度限值曲线,RCCM规范,ASME规范,有限元

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Abstract:

该文介绍了2007版RCCM规范和2010版ASME规范对反应堆压力容器压力温度(P-T)限值曲线计算的改进,并基于2007版RCCM规范提出了新的P-T计算流程。通过3D有限元分析,研究了裂纹尺寸、降温速率、应力强度因子塑性修正、堆焊层结构等因素对P-T曲线的影响。数值分析表明裂纹尺寸和堆焊层结构对P-T曲线有较大影响;应力强度因子塑性修正过程对P-T曲线影响有限;若参考RCCM规范计算P-T曲线,则降温速率对计算结果影响较大;若参考ASME规范计算,则降温速率对计算结果影响不大。

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