首页> 外文会议>ASME Pressure Vessels and Piping Conference >MEASUREMENT OF THE STRAIN DISTRIBUTION IN NOTCH TIP HYDRIDES WITH HIGH ENERGY X-RAY DIFFRACTION AND THE IMPACT ON OVERLOAD MODELING
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MEASUREMENT OF THE STRAIN DISTRIBUTION IN NOTCH TIP HYDRIDES WITH HIGH ENERGY X-RAY DIFFRACTION AND THE IMPACT ON OVERLOAD MODELING

机译:测量高能量X射线衍射高能X射线衍射的缺口液中应变分布及对超载模拟的影响

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The formation of notch-tip hydrides in CANDU Zr-2.5Nb pressure tubes can significantly reduce their resistance to fracture, particularly during overload conditions. This paper outlines recent high energy X-ray diffraction measurements of notch tip strain fields in Zr-2.5Nb specimens, during both hydride growth and overload. The use of this data to validate continuum Finite Element (FE) and possible inclusion in 'Process Zone' models of hydride fracture are also discussed.
机译:在蜡烛ZR-2.5NB压力管中形成槽料氢化物的形成可以显着降低它们对裂缝的抵抗力,特别是在过载条件下。本文概述了近期氢化物生长和过载时ZR-2.5NB样本中Notch尖端应变场的高能X射线衍射测量。还讨论了使用该数据来验证连续有限元(FE),并讨论可能包含在“处理区”氢化物骨折模型中。

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