The fatigue crack propagation rate of the fusion line and weld toe are greater than that of the others.
熔合线和焊趾处疲劳裂纹扩展速率较其他部位大。
The formula of the fatigue crack propagation rate was directly derived from the fatigue damage criterion.
通过疲劳损伤准则，导出疲劳裂纹稳定扩展速率的计算公式。
The equiaxed structure has good tensile property, low fracture toughness and high fatigue crack propagation rate.
等轴组织具有较好的拉伸性能、低的断裂韧性和高的疲劳裂纹扩展速率；
Based on the analysis, the relation between the short crack propagation rate and crack size has been put forward.
依据分析给出化学短裂纹扩展速率与裂纹尺寸之间的关系。
A conclusion that the acoustic emission rate depends mainly on the crack propagation rate is also verified by experiments.
指出声发射率主要受裂纹扩展速率控制，此结论亦得到了实验的证实。
The given calculating example shows that the expression has a better applicability for the crack propagation rate of type A.
结果表明，该近似表达式适用于A型腐蚀疲劳裂纹扩展速率的计算。
The crack propagation rate of pipes was mainly dependent on FATT "of pipeline steel, and FATI" can be measured by drop weight tear test.
介绍了管道裂纹的扩展速度主要取决于管道钢的转变温度FATT, FATT可由落锤撕裂试验测定。
The fatigue crack propagation rate (FCPR) of as-rolled AM60 in the longitudinal direction is higher than that of the transverse direction.
轧制AM60的横向疲劳裂纹扩展速度（FCPR）明显地高于纵向。
The results show that the equiaxed and bi-modal microstructures have the similar mechanical properties and fatigue crack propagation rate.
结果表明：该合金等轴组织和双态组织的室温力学性能和疲劳裂纹扩展阻抗差别不大；
Both the numerical analysis and experimental data show that the fatigue crack propagation rate is insensitive to the stress ratio for plain stress thin specimens.
实验结果和模拟结果都表明，该试样厚度下，应力比对裂纹扩展速率几乎没有影响。
The incubation period of crack nucleation decreases and the crack propagation rate increases with the increase of thermal cycling temperature and cooling rate in the cycle.
随循环温度和冷却速率的增加，裂纹形核的孕育期缩短，裂纹扩展速率增加。
The crack propagation rate of pipes is mainly dependent on FATT of Steels of pipes (fracture appearance transition temperature). And FATT can be measured by drop weighted tear tests.
管道裂纹的扩展速度主要取决于管道钢的转变温度FATT。FATT可由落锤撕裂试验测定。
The propagation rate of crack also decreases with increasing the binder content of cermets.
随着金属陶瓷中金属相含量的增加，裂纹扩展速率降低。
The results showed that for the same material and the same iodine concentration, the rate of crack propagation increased with increasing temperature.
结果表明：对于同种材料在相同的碘浓度下，随着温度的升高，裂纹的扩展速率加快。
The metastable propagation rate of crack is approximately a constant in a certain size range.
在一定尺寸范围内，裂纹的亚稳扩展速率近似是常数。
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 strain energy release rate of the crack propagation was calculated by using virtual crack closure technique, and fatigue life was forecasted.
采用虚拟裂纹闭合技术计算裂纹扩展的应变能释放率，并对裂纹扩展寿命进行计算。
The results indicated that potential scan rate and step frequency played an essential role in the initiation and propagation of crack.
结果表明，电位扫描速度和电位阶跃频率对裂纹萌生与扩展有显著影响。
The energy release rate for crack propagation depends only on the stress intensity factor and the material constants.
电导通裂纹模型中的静电场对裂纹尖端扩展的能量释放率不作贡献。
The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，对焊缝力学性能作出综合评价。
The results have shown that the incubation period of crack nucleation decreases and the propagation rate of crack increases with increasing the cyclic temperature.
试验结果表明，随着循环温度的增高，裂纹形核孕育期缩短， 裂纹扩展速率增大；
Result show that the trace boron additive causes the changes in the mode of fatigue crack propagation and its route, so that crack growth rate of 40MnB is lowered.
结果表明，微量合金元素硼改变了裂纹扩展途径和扩展方式，从而降低了疲劳裂纹扩展速率。
This paper presents a theoretical analysis about the propagation rule of the micro-crack in brittle materials under axial compression, based on the energy release rate criterion.
本文利用混合型裂纹扩展的能量释放率理论对脆性材料受轴向压缩时其内部微观裂纹的扩展规律进行了研究。
On the contrary, the easily broken particles enhance the extension stress at the crack tip, and hence the propagation rate of the crack.
反之，易破碎的粒子则增加了裂纹尖端的扩展应力，提高了裂纹扩展速率。
The effect of quenching temperatures on the rate of stress corrosion crack propagation of 4330M steel in distilled water has been investigated.
本文研究了淬火温度对4330M钢在蒸馏水中的应力腐蚀裂纹扩展速率的影响。
The results show that the method is simple and convenient, and can be used for measuring the crack propagation speed at high loading rate.
结果表明本文建立的方法简便易行，可用于高加载速率下裂纹扩展速度的测定。
The result shows that the cracking load and the ultimate load are all increased to different extent, the rate of crack propagation has an obvious betterment and the seismic mechanism is also improved.
试验结果表明，芳纶纤维加固后的砖砌体的开裂荷载和极限荷载均有不同程度的提高，延性及裂缝的开展有明显的改善，抗震性能提高。
Grain size had some effect on the rate of crack propagation.
晶粒尺寸大小对裂纹扩展速率也有影响。
Grain size had some effect on the rate of crack propagation.
晶粒尺寸大小对裂纹扩展速率也有影响。
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