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。
Fatigue crack growth threshold is predicted based on materials cyclic plasticity.
基于材料的循环塑性预测了疲劳裂纹扩展的门槛值。
Debonding is a main form of interfacial crack growth of fiber-reinforced composites.
脱粘是纤维增强复合材料界面裂纹扩展的主要表现形式。
An experimental study on the fatigue crack growth of GH4169 superalloy has been carried out.
本研究中对GH4169高温合金的疲劳裂纹扩展性能进行了试验研究。
The results show that the creep crack growth rates are strongly dependent upon the microstructure.
研究结果表明：合金的显微组织结构对蠕变裂纹长大速率有重大的影响。
The fatigue crack growth curve from initial crack size till fatigue failure is simulated step by step.
循环续循环模拟计算出裂纹从初始长度一直到疲劳破坏的扩展曲线。
We get valuable results about the effect of the stress ratio and residual stress on fatigue crack growth.
在应力比，残余应力对疲劳裂纹扩展的影响方面获得了有价值的成果。
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。
It is shown that the humid air enhances fatigue crack growth and increases embrittlement in aluminium alloys.
湿空气促进铝合金疲劳裂纹生长和增加合金的脆性。
The fatigue crack closure and fatigue crack growth rate in the high strain region of SCT specimen are studied.
本文研究了SCT试样高应变区的疲劳裂纹闭合效应和疲劳裂纹扩展速率。
Effect of experimental parameters on small fatigue crack growth threshold test in 9310 steel was investigated.
针对9310钢研究了试验参数对疲劳小裂纹门槛值测试结果的影响。
A stochastic crack growth procedure which based on the determined crack growth model is presented in the paper.
在确定性袭纹扩展模型的基础上，建立了疲劳裂纹扩展的随机模型。
The crack growth process is a continuous process of alternating crack-tip stretching and ductile crack cracking.
裂纹的增长过程是一个裂纹尖端延伸与延性裂纹启裂持续地交替出现的过程。
Modeling of crack growth curve is the premise of the durability analysis based on probabilistic fracture mechanism.
裂纹扩展曲线的建模是基于概率断裂力学的耐久性分析方法的前提。
We also make tentative researches for fatigue fracture and for the effect of secondary crack on fatigue crack growth.
本文还在疲劳断口的研究方面进行了新的尝试，探讨了二次裂纹对疲劳裂纹扩展的影响。
A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
对多种碳素钢在拉伸压缩和旋转弯曲负载下的微小裂纹扩展速率进行了研究。
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。
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。
MAE can result in the capture of thousands of waveforms during a test, of which only a few will be the signals from crack growth.
模态声发射在检测过程中采集几千个波形，其中只有一部分是裂纹生长所产生的。
The paper describes a finite element simulation technique of the crack growth process in the homogeneous or inhomogeneous solids.
讨论了材料断裂过程的有限元模拟技术。
Both of these statements are based on the tacit assumption that the applied stress does not change during the crack growth process.
这些结论都建立在理想的假设上，即实用应用力在裂纹扩展过程中不变。
This paper gives a comprehensive introduction and review of the models for predicting fatigue crack growth under spectrum loadings.
本文对谱载荷下预测疲劳裂纹扩展的各种模型作了综合介绍及评述。
The perforation performance is an important index of oil - layer casing representing the resistance to initial brittle crack growth.
射孔性能是油层套管很重要的一项指标，它代表着油层套管抵抗裂纹脆性扩展的能力。
A method is proposed to simulate the fatigue crack growth by finite element technique for corner cracks under cyclic tension loading.
给出了一种利用有限元技术模拟周期性张力载荷作用下孔边角裂纹扩展过程的方法。
Taking the distribution of mean wind velocity into account, the random crack growth model under variable amplitude load was established.
考虑平均风速的分布的影响，建立了随机荷载作用下的疲劳裂纹扩展模型。
Fracture mechanics is adopted to estimate the fatigue life of structural members, and among the rest, crack growth rate formula is studied.
本文采用断裂力学方法来估算结构构件的疲劳寿命，这其中主要围绕裂纹扩展速率表达式展开研究。
The analysis shows that the compressive loading has a significant contribution towards the crack tip plasticity and the fatigue crack growth.
通过分析表明，压应力对裂纹尖端塑性区和疲劳裂纹的扩展有显著的影响。
The results show that addition of small amounts of Mg can not only notably increase the creep crack growth life but also increase creep toughness.
结果表明：加入微量镁，不仅能延长合金的蠕变裂纹形成寿命，而且能提高合金的蠕变韧性。
The results show that addition of small amounts of Mg can not only notably increase the creep crack growth life but also increase creep toughness.
结果表明：加入微量镁，不仅能延长合金的蠕变裂纹形成寿命，而且能提高合金的蠕变韧性。
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