lbb

The engineering assessment method for LBB stability analysis in pressure vessels and pipes

压力容器及管道LBB稳定性分析的工程估算方法

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Leak before break ( LBB) is an important concept for assessing pressure vessels and nuclear equipment.

破前漏（简称LBB）是压力容器、核电站设备结构设计与评价中的一个重要准则。

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Three phenotypes ( Est-lAA, Est-lAB and Est-lBB ) were detected.

Est -1 位点遗传多样性指数为 0.4790 .

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With the more and more stringent safety requirements for high pressure vessels and nuclear energy equipment, the importance of LBB rule is increasing.

随着人们对高压容器特别是核能设备安全性要求的提高，先漏后爆准则的重要性不断增加。

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The affection of fatigue and creep to the crack growth must be considered when LBB is applied on the nuclear pipes in the high temperature reactors ( as fast reactor) beyond the creep temperature.

对于在蠕变温度以上高温堆（如快堆）的核级管道，运用LBB分析时应该考虑疲劳和蠕变对裂纹扩展的影响。

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It is demonstrated that the pipe meets the conditions that the crack is stable and the leakage is detectible which LBB asks for, and it also satisfies the time request from the beginning of leak to the moment at which the crack is unstable.

经过验证得到：选用的管道符合LBB技术对于裂纹稳定性以及泄漏量可探测性的条件，满足从开始泄漏到裂纹失稳的时间要求。

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Application of Damage Mechanics in Nuclear Piping LBB Analysis

损伤力学在核级管道LBB分析中的应用

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The LBB assessment criterion is a simple, reliable and economical method, in which the labor-ous fracture assessment is reduced to the failure assessment diagram for technicians in terms of various failure theories.

它根据不同的失效理论，将复杂的断裂力学评定方法简化成失效评定图供技术人员使用。

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Studies on the various assessment theories and their computational precisions used to LBB fracture analysis of pressure vessels

用于压力容器破前漏（LBB）断裂分析的各种评估理论及计算精度研究

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The reaction mechanism of hydration was discussed. ON THE PERFORMANCES AND HYDRATION MECHANISM OF LBB

在动力学研究的基础上，对丙烯醛水合反应机理进行了分析

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