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- The flaking do increases and undulates the fatigue crack growth rate. 钢中的白点能增加疲劳扩展速率并使扩展速率发生波动。
- N. Shlyannikov, Z.B. Kuang, F.P. Yang (2004), Surface fatigue crack growth behavior, Russian journal Power Engineering Problems. 杨凤鹏,林卓英(2004),表面裂纹疲劳扩展的试验,北京科技大学学报.
- The fatigue crack growth rate (FCGR) of 4130X steel in H2S environment is researched in this paper. 研究了4130X钢在硫化氢(H2S)腐蚀介质中的疲劳裂纹扩展速率da/dN。
- In this paper, ALGOL computer program of data reduction techniques, for fatigue crack growth test is described. 本文叙述了疲劳裂纹扩展速率试验数据处理的ALGOL计算程序。
- SEM and Microzone Phase Structure Analysis (MPSA) help to describe the process of fatigue crack growth of the steel. 用SEM和微区相结构测试技术分析了中锰铸钢在疲劳裂纹扩展过程中的行为特点。
- The fatigue crack growth rate is the core for predicting fatigue life by use of fatigue crack propagation(FCP) theory. 疲劳裂纹扩展率表达式是采用疲劳裂纹扩展理论预报疲劳寿命的核心。
- G .C .Sih,Mixed Mode Fatigue Crack Growth Prediction.Frac .Mech,Vol.13(3),439-451,(1980). 肖芳淳:复合型塑性区尺寸因子断裂判据,力学与实践,第一期,1981年。
- The fatigue crack growth experiments were performed according to the phenomena that crack occurred at PMMA in use. 根据外场使用中出现的裂纹现象,进行了疲劳裂纹扩展试验。
- As an important designing and indicating target of damage tolerance, the fatigue crack growth rate (FCGR) should be necessarily studied. 裂纹扩展速率作为损伤容限设计一个重要指标,以及表征材料损伤容限性能的重要方面,有必要对其开展较为深入的研究。
- It is founded that with water immersion, fatigue crack growth is accelerated for orientation PMMA and delayed for non-orientation PMMA. 结果表明在裂纹扩展中,水的浸入加速定向有机玻璃的裂纹扩展速度,对非定向有机玻璃则减缓裂纹扩展速度。
- Ceneral calculation formulas of fatigue crack growth in article [1] were verified by the testing data of corrosion fatigue crack growth. 应用腐蚀疲劳裂纹试验数据验证了文献[1]中疲劳裂纹扩展尺寸的通用计算公式;
- Abstract The fatigue crack growth rate is the core for assessing fatigue growth life by use of fatigue crack propagation (FCP) theory. 摘要 疲劳裂纹扩展速率表达式是采用疲劳裂纹扩展理论评估疲劳裂纹扩展寿命的核心。
- Fatigue crack growth life is dominant in total life of components with notches or welded joints, which are unavoidable in most of structures and machines. 疲劳裂纹增长寿命决定了主要元件,包括凹口和焊接件的整个寿命,这些元件在绝大部分的结构和机器中是不可以避免的。
- The fatigue crack growth resistance in the TL orientation is inferior to that in the LT orientation for both alloys and composites in T4 and T6 tempers. 在等力量疲劳裂缝生长实验方面,不论是T4或T6时效处理,LT型态之试片比起TL型态有较佳之抗疲劳生长能力。
- The fatigue crack growth test results show that the FCGRs of 2024-T62 aluminium alloy are retarded significantly after LSP, which reveals that arresting crack by LSP is pratical. 疲劳裂纹扩展试验结果表明:激光冲击处理可以显著地降低疲劳裂纹扩展速率,作为止裂工艺是可行的。
- A great amount of practices showed that the present ALGOL computer program is a rather simple and convenient method which can be used satisfactorily in analysing the results fatigue crack growth tests. 大量的实践表明:本文推荐的ALGOL计算程序,是处理分析疲劳裂纹扩展速率试验数据的简便而有效的好方法。
- Experimental results indicate that, in the case of single peak stretching overload,intense overload retartation effect (OLRE)exists in short fatigue crack growth and the short fatigue crack is moro sensitive to the OLRE. 试验表明,在单峰拉伸过载情形下,短裂纹扩展存在比较强烈的过载迟滞效应;
- The effects of prestressing overload on dow cycle fatigue and fatigue crack growth rates da/dN of titanium alloy TC-11 and Ni-base superalloy GH33A for gas turbine disks were investigated at room temperature and 633K. 研究了预拉伸应力过载对TC-11钛合金及GH33A高温合金的低周疲劳及da/dN的影响。
- The fatigue crack growth rate (FCGR) of 08PVXt, 16Mn, 440C and 4340 steels in distilled water anb NaClaqueous solution has been investigated, and the experimental results have been compared with those of corrosion fatigue in the literature. 本文对16Mn、08PVXt、440C和4340钢在蒸馏水和3.;5%25NaCl水溶液中的疲劳裂纹扩展速率(FCGR)进行了实验研究;并与一些钢在同类介质中的腐蚀疲劳(CF)实验结果进行了对比。
- The fatigue crack growth rate has been investigated for SS400 and its welded joint based on the ASTM E647-83 specification. In the test the compact tension (CT) specimens were used. 笔者参照美国材料试验学会标准ASTME647 83的规定,采用紧凑拉伸CT试件对SS400钢及其焊接接头CT试件的疲劳裂纹扩展速率进行了测试。