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- NSR and JIC values are higher in 5052 than in 5182 indicating the greater fracture toughness and better crack growth resistance in 5052. 比较两款铝-镁合金之NSR值,镁含量较高的5182其NSR值比5052来得低,显示其具有较低的凹痕韧性。
- Methods Nonequilibrium statistical theory of fracture was made and the blocking influence of triple junctions on crack growth was considered . 方法用非平衡断裂统计理论框架并且考虑了晶体内部三叉结对裂纹阻塞的影响。
- The critical size, crack growth and propagation correspond with the 2nd slump after the curve terrace the initiation of fracture, and the spread of fracture respectively. 裂纹生长的临界尺寸对应于载荷-位移曲线平台后的第2个下跌槛。
- Two series of fatigue crack growth rate (FCGR) tests using three point bend specimen with different integral knife edge designs are performed. Effect of elastic modulus on the measurement of fatigue crack length using compliance technique is analyzed. 用不同整体刀口设计的三点弯曲SE(B)试样做了两组疲劳裂纹扩展速率 (FCGR)试验 ,分析了弹性模量在柔度法测量疲劳裂纹长度中的影响。
- 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。
- Crack growth rate is an important parameter for engineering fracture failure estimation,and fractographic retroestimation is one of practical methods for measuring crack growth rate. 裂纹扩展速率是工程断裂失效预测分析的基础,采用断口定量测量裂纹扩展速率是常用的实用方法之一。
- 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 effect of growth fracture of Abei Andesite reservoir on oilfield development. 阿北安山岩油藏裂缝发育特征对开发的影响。
- 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。
- 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。