Evaluation of elastic-plastic fracture toughness testing in the transition region through Japanese interlaboratory tests

被引：0
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作者：
Japan Steel Works, Ltd, Muroran, Japan [1 ]
机构：
来源：
ASTM Special Technical Publication | 1995年 / 1207期
关键词：
Crack propagation - Elasticity - Fractography - Fracture toughness - Grain size and shape - Plasticity - Probability - Steel - Strain;
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摘要：
International cooperative interlaboratory test programs on elastic fracture toughness in the transition region were carried out using thick compact tension (IT-CT) specimens at three temperatures to obtain basic information about the measurement of lower-bound fracture toughness of steels. Test results have provided some information regarding the standardization of a method for measuring the lower-bounded fracture toughness of steels. In particular, the guidelines on the measurement of Δa0, X and Δa0 + X were established and the tentative test procedure for the determination of the lower-bound fracture toughness was developed using a fractographic data analysis.
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页码：233 / 263
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