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- FATIGUE CRACK CLOSURE ANALYSIS UNDER TRIAXIAL STRESS CONSTRAINT 三轴应力约束下疲劳裂纹闭合分析
- A Study of the Numerical Simulation Technique for Fatigue Crack Closure 疲劳裂纹闭合的数值模拟方法
- Keywords Ni-base superalloy;high temperature small fatigue crack;crack growth rate（CGR）;crack closure effect; 镍基高温合金;高温疲劳小裂纹;裂纹扩展速率;裂纹闭合效应;
- fatigue crack closure 闭合参数
- 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。
- The fractography of the fatigue crack initiation displayed cleavage f... 裂纹形成的断裂为穿晶解理机制,预应变可导致更多的二次裂纹。
- Compressive residual stress increases the crack closure effect at the notch and may lead to a non-pr... 残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。
- The crack closure is dynamically measured by means of interferometric strain-displacement gauge(ISDG). 用激光干涉应变-位移测量仪（ISDG）进行了裂纹闭合点的高精度动态测量。
- No evidence of fatigue crack extension was detected in the silver Memorial Bridge nor the Fremont Bridge. 在西尔费纪念桥和弗里蒙特桥都没有检查出疲劳裂纹扩展的证据。
- Thin specimen indicated lower FCG rate compared to thick specimen, which resulted from the difference of crack closure behavior. 相对于厚标本而言，薄标本显示低的疲劳裂纹增长率，这一结论是从裂纹封闭行为的差异上得来的。
- It turns out that crack closure is the main reason for retardation, and crack tip blunting, crack deflection and strain-induced martensite would reinforce it. 室温蠕变对裂纹扩展产生延滞的原因主要是裂纹闭合,同时裂尖钝化、裂纹偏折及形变诱发马氏体的形成也会起到一定的作用。
- 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 behaviours of fracture, fatigue and fatigue crack propagation in a cast magnesium alloy are systematically studied. 本文系统地研究了铸造镁合金的断裂;疲劳和疲劳裂纹扩展性能.
- The failure forms of cold work roll including contact fatigue crack, spalling, inclusion crack and wear are discussed. 讨论了冷轧工作辊接触疲劳裂纹、剥落、夹杂物裂纹和磨损等失效形式。
- 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。
- The influence of accessorial electrode and electrode distance on the electrodeposition effect was investigated, and three parameters, that is, rate of mass gain, rate of surface coating and rate of crack closure were measured. 摘要就电沉积方法修复混凝土裂缝中辅助电极、电极距离对沉积效果的影响进行了试验研究，测定了沉积过程中试件质量增加率、表面覆盖率及裂缝愈合率。
- 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 research results sho w that the fatigue life has been im provedgreatly and the fatigue crack gro ... 结果表明：激光冲击处理后，铝合金疲劳寿命显著提高、疲劳裂纹扩展速率大大降低。
- 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。
