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- Effect of experimental parameters on small fatigue crack growth threshold in high-strength steel 试验参数对高强钢疲劳小裂纹门槛值测试的影响
- crack growth threshold 门槛值
- The threshold values and crack growth rates of vermicular graphite cast iron specimen subjected to four heat treatment methods are tested, analyzed and compared. 摘要对在四种热处理方法下的蠕墨铸铁试样进行门槛值和裂纹扩展速率的测试,并对其进行分析和比较。
- The results show that the base structures of vermicular graphite cast iron specimen affect markedly the threshold value and crack growth rate of within low speed growth rate region. 其结果表明,不同的基体组织对蠕墨铸铁的门槛值和低速区的裂纹扩展速率有比较明显的影响,门槛值随相对韧度增大而增大。
- In the tie girder boxes crack growth was detected near the crack tip. 在系杆箱型梁中裂纹尖端附近检测到裂纹的扩展。
- 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。
- Beijing, for its part, is showing a new candour, warning that the magical 8 per cent growth threshold may be beyond it this year. 在中国中央政府方面,则展现出一种新的坦诚。北京已警告称,今年可能难保神奇的8%25增长率底线。
- Many studies in the related area of stress corrosion or subcritical crack growth use simplified test systems. 许多有关应力腐蚀或亚临界裂纹发展领域的研究使用了简化的试验系统。
- near threshold fatigue crack growth 近阀失效裂纹生长
- The analytical investigation of nonlinear creep crack growth is in its infancy and much remains to be learned and done. 对于蠕变裂纹扩展的分析研究还是处于初期阶段,还有许多事情有待于认识和完成。
- 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 striations were readily observed in stable crack growth regions for both aluminum alloys. 另外,从两款铝-镁合金在裂缝延伸的过程中,发现会有因为裂缝延伸产生裂缝尖端塑性钝化而形成疲劳纹路。
- 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。
- Fleck, N.A., “Influence of Stress State on Crack Growth Retardaion,” ASTM STP 924, Vol. 1, pp.157-183, 1988. 谢游麟,2003年3月,穿透式裂缝与表面裂缝修补之研究,国防中正理工学院,博士论文,第92页。
- 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。
- The subcritical crack growth mechanism in brittle materials is studied from the viewpoint of mesomechanics. 本文从细观力学角度研究了高脆性材料亚临界裂纹扩展机制。