| TA16传热管的断裂韧度测试方法研究 |
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| 引用本文： | 刘肖,王理,包陈,王浩,马娜.TA16传热管的断裂韧度测试方法研究[J].原子能科学技术,2018,52(3):427-433. |
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| 作者姓名： | 刘肖 王理 包陈 王浩 马娜 |
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| 作者单位： | 1.中国核动力研究设计院 反应堆燃料及材料重点实验室，四川 成都610213；2.西南交通大学 力学与工程学院，四川 成都610031 |
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| 摘 要： | 近年来，以蒸汽发生器传热管为代表的小尺寸管材的断裂韧度评价方法受到了日益关注。本文设计了一种可用于TA16传热管断裂韧性测试的含径向裂纹C形试样，基于弹塑性有限元分析获得试样的应力强度因子K和J积分的计算式。采用规则化法完成了TA16传热管的断裂韧度试验，试验结果表明，不同试样得到的J阻力曲线和条件启裂韧度JQ的分散性均较小，JQ均值为32.875 MPa?mm，标准差为1.377 MPa?mm。
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| 关 键 词： | 断裂韧度 J阻力曲线" target="_blank">J阻力曲线')">J阻力曲线 含径向裂纹C形试样 规则化法 TA16传热管 |
Study on Test Method for Fracture Toughness of TA16 Heat Transfer Tube |
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| LIU Xiao,WAN Li,BAO Chen,WANG Hao,MA Na.Study on Test Method for Fracture Toughness of TA16 Heat Transfer Tube[J].Atomic Energy Science and Technology,2018,52(3):427-433. |
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| Authors: | LIU Xiao WAN Li BAO Chen WANG Hao MA Na |
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| Affiliation: | 1.Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu 610213, China;2.School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | In recent years, the fracture toughness assessment for small size tubes represented by SG heat transfer tubes has received more and more attention. In this study, a type of radial cracked C-shaped specimen was designed to estimate the fracture toughness of TA16 heat transfer tubes. The expressions of stress intensity factor K and J integral were obtained based on elastic plastic finite element analyses. A group of radial cracked C-shaped specimens for TA16 heat transfer tubes were carried out by using normalization method. The test results show that small data dispersions of J resistance curves and conditional initiation toughness JQ are observed, the mean value of JQ is 32.875 MPa?mm, and the standard deviation is 1.377 MPa?mm. |
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| Keywords: | fracture toughness J resistance curve radial cracked C-shaped specimen normalization method TA16 heat transfer tube |
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