通过试验研究了力学不均匀性对接头断裂韧性和裂纹开裂角的影响。
Effects of mechanical heterogeneity on fracture toughness and crack deviation Angle of the joints were investigated by experiment.
本文利用示波冲击试验，对船用921A钢动态断裂韧性的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.
通过开疲劳裂纹和线切割裂纹的对比试验，研究裂纹尖端的尖锐程度对球墨铸铁断裂韧性的影响；
By comparing fatigue crack with electrosparking crack, the effects of crack tip on fracture toughness of ductile iron have been studied.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，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.
试验结果表明：减小浆网速比，增强了纤维定向作用，裂缝纵向分布增加，导致纸张中纵横向断裂韧性差异增加。
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.
针对不同种类异形钢纤维进行了弯曲韧性、断裂韧性、立方体抗压强度等试验。
Experiments on bending toughness, breaking toughness and cube strength test results are carried out in connection with various kind of deformed steel fiber.
对层板复合材料试验结果的分析表明，设计的测试装置有效，建立的测试方法是对层板复合材料断裂韧性测试的有益尝试，有较大的参考价值。
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.
指出对这样的管材做小试样的J积分试验来测试其断裂韧性既方便、合理，又经济。
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.
主要进行了环氧及增韧环氧树脂的断裂韧性及裂纹快速扩展的试验研究。
Fracture toughness and the rapid crack propagation are studied on epoxy and toughed epoxy.
按照国际岩石力学学会试验规范，对不同赋存深度的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.
此外，还研究了焊接热输入量对局部脆性区断裂韧性的影响，并通过定性、定量的金相显微组织评定对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...
此外，还研究了焊接热输入量对局部脆性区断裂韧性的影响，并通过定性、定量的金相显微组织评定对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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