Fatigue span of pavement is predicted by judging damage factors and varied crack length.
损伤因子和裂缝长度的变化趋势相似，均可以用来评价路面的疲劳寿命。
The diagnosis and identification of the crack length for the disk parts is attached importance to.
所以圆盘类零件裂纹长度的诊断识别问题越来越受到重视。
The smaller the curvature and the larger the crack length the smaller will be the fracture stress.
曲线半径越小，裂纹长度越大，断裂应力也就越低。
The initial crack length of engineering components usually be defined subjectively but not objectively.
工程构件的初始裂纹长度是人为规定的，不具有客观性。
Reconstructed model technique is successfully applied to measure short fatigue crack length in the testing work.
将复型技术应用于疲劳小裂纹扩展试验中的裂纹长度测量。
The specimen with larger crack length has larger volume fraction of the martensite and larger transformation zone.
马氏体的体积分数以及相变区域随着裂纹长度的增加而显著增大。
Finally, the influences of some stochastic parameters such as initial crack length on the reliability are analysed.
并探讨了初始裂纹等随机参量的变化对可靠性的影响。
An automatic compliance crack length measurement system for fatigue crack propagation test was used in the experiments.
研究中应用了一种柔度法疲劳裂纹自动测量系统进行裂纹长度测量。
For fracture rock, the fracture stress will be reduced and the crack length will increase under the chemical corrosion.
对于裂隙岩体来说，化学溶液的腐蚀则主要体现在断裂应力的减小和裂隙的增大。
The simulating results have indicated that: the crack closure effect is obviously influenced by the fatigue crack length.
在建立裂纹扩展模型的时候，要考虑到裂纹长度对裂纹闭合效应的影响。
It is shown that in general cases, the field intensity factors increase as the ratio of crack length to hole-size become large.
结果表明：应力强度因子随着裂纹和孔的相对尺寸的增加而增加。
It is revealed that when the crack distance is less than crack length, the crack-tip fields will interfere each other seriously.
研究表明：当共线裂纹间距小于裂纹长度时，裂纹尖端场存在显著的干涉效应；
For a given specimen and notch configuration, maximum load is always dependent on the crack length and independent of the material.
对于特定的试样和裂口几何形状，最大荷载与裂纹长度有关，而与材料无关。
Crack length measurement technique, which used for aeronautical materials under corrosive environment, has been studied in this paper.
进行了腐蚀环境下航空材料裂纹扩展的自动测量技术研究。
Under the condition of equilibrium crack the plastic component of the displacement can be regarded as a function of load and crack length.
在平衡裂纹条件下，将塑性部分表达为该载荷与裂纹长度的函数。
Short cracks propagation research: the degree of Microscopic structure influence to the fatigue crack propagation depends on crack length.
短裂纹扩展研究：微观组织结构对疲劳短裂纹扩展的影响程度取决于裂纹的长度。
The initial damage and the cumulative damage during operation are quantitatively measured with the main fatigue crack length in the structure.
首先将结构的初始损伤、使用过程中的损伤累积用主裂纹长度的分布加以定量描述。
The crack-tip dynamic stress intensity factors decrease with the decrease of the crack length and the increase of the functionally gradient parameter.
无论在什么时刻，裂尖处动态应力强度因子随裂纹的长度减小而减小，随板材料的功能梯度参数增大而减小。
In this paper, the lower order moments formulae of crack length distribution under given life were derived by means of stochastic point process theory.
运用随机点过程理论导出了求取裂纹扩展随机过程低阶矩的公式。
On the basis of this, an automatic measurement technique of fatigue crack length in fatigue crack growth rate test under corrosive circumstance is established.
在此基础上，建立了腐蚀环境下疲劳裂纹扩展速率试验中裂纹长度的自动检测技术。
The SIF decreases with the friction coefficient rising when the surface crack tip lies in the base and the reflective crack length is more than a certain value.
反射裂缝裂尖位于面层中且裂缝长度大于某一值时，应力强度因子随着摩擦系数的增加而减小。
The numerical examples are provided to show the influences of the material properties, the wedge Angle, dislocation position and the crack length on the interaction.
最后通过数值算例，针对不同问题讨论了材料常数、楔口角度、裂纹长度对相互作用的影响。
Statistic data were obtained by tests and dissections and the relationships between crack length, width and depth were given as a reference for crack depth evaluation.
通过大量检测试验和解剖，得出统计规律数据，从而得到裂纹长度、宽度与深度之间的对照表，对裂纹深度的评估有一定的参考价值。
The structure integrity of HK40 reformer tube is studied in respect of the controlling parameter of creep crack growth, the critical crack length and the residual life.
分别从蠕变裂纹扩展的控制参数，临界裂纹长度及剩余寿命三方面对HK40转化管进行了结构完整性研究。
The preventive maintenance sections are divided by using dynamic cluster method and three indexes including rutting depth, transverse crack length and skidding resistance.
采用车辙深度、横向裂缝长度和路面抗滑性能指数三指标，使用动态聚类法，划分预防性养护路段。
The predicted valued of the fatigue limit of crack initiation the fatigue limit of fracture, and the non-propagating crack length agreed well with the experimental values.
包括裂纹的萌生极限、断裂极限以及停止扩展裂纹长度的预测值与实验结果吻合。
The distribution function of crack length at given time can be calculated by integration of the initial crack length distribution and the transition function of Markoff process.
文中导出了用初始裂纹长度的分布及马尔可夫转移概率密度函数计算给定时刻裂纹长度分布的积分公式。
According to fracture characteristic of concrete beams, the influence of main factors such as size effect, concrete strength and relative crack length on fracture toughness is discussed.
针对混凝土材料断裂的特点，探讨了影响断裂韧度的主要因素：尺寸效应、混凝土强度和相对缝深等。
Experimental research and theoretical analysis of critical load selection, difference between specimens with and without fatigue crack, and crack length and width effects were carried out.
对其中临界荷载的选取、有无疲劳裂纹的差别以及裂纹长度和宽度的影响等进行了实验研究和理论分析。
This paper provides reliability analysis based on different stability analysis theory and calculates the critical crack length of an engineering example as a reverse problem to stability analysis.
基于上述分析，将对各种稳定性研究技术通过实例进行深层对比，并对作为稳定性分析反问题的临界裂纹长度计算进行了工程实例的验证。
应用推荐