轧制AM60的横向疲劳裂纹扩展速度（FCPR）明显地高于纵向。
The fatigue crack propagation rate (FCPR) of as-rolled AM60 in the longitudinal direction is higher than that of the transverse direction.
塑性动态断裂韧性CTOD，及其在不同裂纹扩展速度下变化规律的测试。
The dynamic plastic fracture toughness CTOD and its variation with different. crack propagation speeds.
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 results show that the method is simple and convenient, and can be used for measuring the crack propagation speed at high loading rate.
在爆炸荷载作用下，岩体裂纹扩展速度的实测值与理论分析值之间存在较大差异。
There is a big difference between the experimental data and the theoretical result of crack spreading in rock under explosion load.
根据这种观点，本文提出了一种简便的假设，是一家生产领域，大小决定了裂纹扩展速度。
According to this view, this paper puts forward a simple hypothesis, which is in the field, size decided the crack propagation speed.
所研究的材料在水环境下的裂纹扩展速度均加快，但玻璃陶瓷和氧化锆陶瓷材料更为明显。
The increase in the crack velocity of all materials in water environment is observed, but the degree is more remarkable for glass ceramics and zirconia.
根据试验结果，得到了花岗岩亚临界裂纹扩展速度与应力强度因子之间的关系和花岗岩的断裂韧度。
Based on testing results, the relationship between velocity of granite subcritical crack growth and stress intensity factor, and the fracture toughness are obtained respectively.
根据试验结果，得到了花岗岩亚临界裂纹扩展速度与应力强度因子之间的关系和花岗岩的断裂韧度。
Based on testing results, the relationship between velocity of granite subcritical crack growth and stress intensity factor, and the fracture toughness are obtained respectively. Du...
因此，计算筒体尤其是其危险部位的应力，预测其裂纹扩展速度或其使用寿命，具有非常重要的实际意义。
Accordingly, it is very important and significant to calculate the stress of the cylinder especially in the dangerous position, and to predict its crackle expanding speed and its surplus life.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
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 results indicated that potential scan rate and step frequency played an essential role in the initiation and propagation of crack.
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 crack propagation rate of pipes was mainly dependent on FATT "of pipeline steel, and FATI" can be measured by drop weight tear test.
但加载速率愈快，裂纹扩展实测平均速度愈高。
However, increasing loading rate will result in an increase of measured average crack velocity.
因此，研究裂纹扩展规律必须研究扩展速度，对探讨岩石断裂控制爆破机理，具有重要意义。
Therefore, the study of the rupture expansion speed is very important for the study of rupture expansion mechanism and it is of great significance in the controlled blasting of rock.
结果表明：表面裂纹各点的扩展速度与其所处的位置和容器接管的几何参数有关，且其扩展平衡状态为一不规则形状。
The results show that the rate of the growth of each point on the surface crack is connected with the place of crack and the structure of nozzle, and its steady shape is some of complex curve.
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 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 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.
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