RELATIONSHIP BETWEEN MATERIAL FRACTURE TOUGHNESS USING FRACTURE MECHANICS AND TRANSITION TEMPERATURE TESTS. Technical Report No. 15.
RELATIONSHIP BETWEEN MATERIAL FRACTURE TOUGHNESS USING FRACTURE MECHANICS AND TRANSITION TEMPERATURE TESTS. Technical Report No. 15.
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DOI：
10.1520/stp38825s
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发表时间：
1971
期刊：
影响因子：
--
通讯作者：
R. Sailors;H. Corten
中科院分区：
文献类型：
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作者：
R. Sailors;H. Corten
虽然应力体中缺陷的影响可以用线弹性断裂力学(LEFM)方法来定量描述，但有时只使用常规的转变温度试验来评估断裂敏感性是必要的。为了获得每种方法的优点和最佳特征，需要对这两种裂缝评估方法进行对比。结合A533B钢的最新数据，评述了LEFM结果与转变温度试验结果之间的现有相关性。HSST程序(ORNL)在未辐照和辐照条件下对LEFM和转变温度试验获得的一系列完整的试验结果允许断裂韧性与夏比V缺口能、无塑性转变温度、DT转变温度和低温解理应力相关联。通过遵循LEFM的基本原理，只要有可能，一类与A533B相似的压力容器钢的断裂行为就被证明是一致的。/作者/
Although the effect of flaws in stressed bodies can be quantitatively characterized by methods of linear elastic fracture mechanics (LEFM), it is sometimes necessary to assess the fracture susceptibility using only conventional transition temperature tests. In order to gain the advantages and best features of each approach, a correlation between the two methods of fracture assessment is needed. The existing correlation between LEFM results and transition temperature test results are reviewed in light of new data on A533B steel. A complete series of test results obtained by the HSST Program (ORNL) for both LEFM and transition temperature tests in both unirradiated and irradiated conditions permit fracture toughness to be correlated with charpy V-notch energy, nil-ductility transition temperature, DT transition temperature, and low temperature cleavage stress. By following fundamentals of LEFM, whenever possible, a consistent pattern of fracture behavior is demonstrated for a class of pressure vessel steels similar to A533B. /Author/