• 通过试验研究力学不均匀性接头断裂韧性裂纹开裂影响。

    Effects of mechanical heterogeneity on fracture toughness and crack deviation Angle of the joints were investigated by experiment.

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  • 本文利用示波冲击试验船用921A动态断裂韧性测试方法进行了研究。

    In this paper, the dynamic fracture toughness measuring method for 921a shipbuilding steel is studied by instrumented Charpy impact test.

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  • 通过疲劳裂纹线切割裂纹对比试验研究裂纹尖端尖锐程度球墨铸铁断裂韧性影响

    By comparing fatigue crack with electrosparking crack, the effects of crack tip on fracture toughness of ductile iron have been studied.

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  • 根据试验测定焊缝各区冲击韧性断裂韧性疲劳裂纹扩展速率疲劳裂纹扩展门槛,对焊缝力学性能作出综合评价

    The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.

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  • 试验结果表明减小浆网速增强纤维定向作用,裂缝纵向分布增加,导致纸张中纵横断裂韧性差异增加。

    The results indicate that the difference of fracture toughness between MD and CD increases with a decrease in jet_wire speed ratio, and the main reason is stronger fibre orientation.

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  • 针对不同种类异形纤维进行弯曲韧性断裂韧性立方体抗压强度试验

    Experiments on bending toughness, breaking toughness and cube strength test results are carried out in connection with various kind of deformed steel fiber.

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  • 板复合材料试验结果分析表明,设计的测试装置有效,建立测试方法层板复合材料断裂韧性测试的有益尝试,较大的参考价值。

    The representative testing results of laminates show that the equipment is effective and the testing method is a promising attempt, which can be used for reference.

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  • 指出对这样管材试样J积分试验来测试断裂韧性方便、合理经济

    And points out simultaneously it is convenient, reasonable and economic for the pipe product to be tested for its fracture toughness of J integration with small samples.

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  • 主要进行环氧增韧环氧树脂的断裂韧性裂纹快速扩展试验研究。

    Fracture toughness and the rapid crack propagation are studied on epoxy and toughed epoxy.

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  • 按照国际岩石力学学会试验规范,对不同赋存深度玄武岩岩样进行了动态断裂韧性测试。

    According to the standard testing method of ISRM, the dynamic fracture toughness for the basalt samples in different depth has been measured.

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  • 此外研究了焊接输入量局部脆性区断裂韧性影响,并通过定性定量金相显微组织评定试验结果进行了分析。

    In addition, the effect of welding heat input was studied. Qualitative and quantitative metallographic examination of the simulated microstructures was made to assist t...

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  • 此外研究了焊接输入量局部脆性区断裂韧性影响,并通过定性定量金相显微组织评定试验结果进行了分析。

    In addition, the effect of welding heat input was studied. Qualitative and quantitative metallographic examination of the simulated microstructures was made to assist t...

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