propagation rate
英
美
网络 增长速率; 传播速率
双语例句
- The effect of microstructure on propagation rate of fatigue crack was investigated by SEM and three point bending specimens with notch.
用金相显微镜、扫描电镜（SEM）及带有切口的三点弯曲试样研究了显微组织对珠光体钢疲劳裂纹扩展速率的影响。 - Under the same stress amplitude, the higher the stress concentration factor nearby the hole, the faster the crack propagation rate.
但疲劳裂纹扩展速率与孔边局部区域的应力分布有关。 - Investigation of fatigue crack propagation rate of friction stir welding for aerial aluminum alloys
航空铝合金搅拌摩擦焊疲劳裂纹扩展速率试验研究 - Fatigue crack propagation rate of the forge steel brake disc is studed with a test in the paper.
该测定参数可用于锻钢制动盘剩余寿命评估。 - 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 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 results have shown that tensile straightening between quenching and ageing has no effect on the crack propagation rate and fracture toughness, but has some effect on tensile properties of the sheet.
结果表明，淬火与时效间的板材拉伸矫直对裂纹扩展速率及断裂韧性无影响，而对力学性能有影响。 - 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 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。 - Acoustic emission ( AE) characteristics of the propagations of fatigue cracks in low strength materials are monitored and the relation between AE and crack propagation rate is discussed.
用声发射对低强度材料LD31铝材和A3钢双疲劳裂纹扩展过程进行了监测，得到了声发射参数与裂纹扩展速率的对应关系。 - Then the description methods of randomness and fuzziness of crack size, crack propagation rate and fracture mechanics strength are given.
其次，分别给出了断裂力学强度CTOD、KIC以及裂纹扩展速率和裂纹尺寸的随机性与模糊性的描述方法。 - With the theory of equivalent inclusion and energy release rate, the propagation rate of short crack fatigue of matrix composite was derived. The effect of whisker and the plastic zone at the front of crack on propagation rate was considered with equivalent crack length.
利用等效夹杂理论及能量释放率导出了金属基复合材料短裂纹疲劳扩展速率，公式中考虑了晶须及裂纹前端塑性区对裂纹的影响，并给出了等效裂纹长度公式。 - Computational result show that the porosity increases with the smolder progression, consequently the smolder propagation rate and its peak temperature will be raised.
计算结果表明，空隙率随阴燃过程增大，从而加快了阴燃传播速度，提高了其峰值温度。 - The purpose of this experiment is to increase its propagation rate using tissue culture technique.
本试验应用组织培养的方法拟提高它的繁殖系数。 - The theoretical prediction showed that there are two regions in the curve of crack propagation rate with the crack tip strain rate.
计算表明，在裂纹扩展速率与裂尖应变速率的关系曲线中有两个特征区域。 - 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 effect of carbide volume fraction and two matrix structure on abrasive resistance, fracture toughness K_ ( Ic), K_ ( Id) and crack propagation rate da/ dN of high Cr white cast irons is studied in the paper.
本文研究了两种基体组织状态及碳化物体积分数对高铬白口铸铁抗磨粒磨损耐磨性、断裂韧性K（IC）、K（Id）及亚临界裂纹扩展速率da/dN的影响。 - The volume fraction ( V) effect of SiC particles on fatigue crack propagation in SiCp/ Al composites has been investigated by fatigue propagation rate examination, as well as fatigue crack path and fatigue fracture surface observation.
本文通过对疲劳裂纹扩展速率的测试和对疲劳裂纹扩展路径及疲劳断口的观察分析，研完了SiC颗粒体积分数对SiCp/Al复合材料疲劳裂纹扩展的影响。 - According to the research results, an engineering estimation method for propagation rate of strain fatigue cracks in high strain region of pressure vessel is established.
根据SCT试样应变疲劳裂纹扩展试验研究结果，在考虑了压力容器高应变区几何形状和材质变化对应变疲劳裂纹扩展参量影响后，提出了一种压力容器高应变区应变疲劳裂纹扩展速率工程估算方法。 - Influence of Loading Frequency on Crack Propagation Rate with Dynamic Stress Involved
考虑动应力时加载频率对裂纹扩展速率的影响 - Acting as a diluent during thermite combustion process, NaF will reduce the combustion temperature and propagation rate;
在铝热燃烧过程中NaF作为稀释剂存在，降低燃烧温度和蔓延速率； - The effect of the above factors on the corrosion fatigue crack propagation rate is described and analyzed in this paper.
实验得出了上述各因素对腐蚀疲劳裂纹扩展速率的影响结果，并对各因素影响裂纹扩展速率的原因进行了分析。 - The formula is derived of calculating the influence of loading frequencies on the crack propagation rate ( da/ dN) d.
导出了全面反映加载频率影响的裂纹扩展速率（da/dN）d的计算公式； - Based on the test results, the relationship between the surface length of short crack and the fatigue cycle number and the expression between the propagation rate of crack and the fatigue loads as well as the surface length of crack had been established.
文中给出了有关试验结果，藉此建立了短裂纹表面长度与疲劳循环数间的关系以及裂纹扩展速率与疲劳载荷和裂纹尺寸之间的定理描述式。 - 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 Effects of High Temperature Embrittlement on the Fatigue Crack Propagation Rate
高温脆性对疲劳裂纹扩展速率的影响 - The propagation rate of In_2S_3 crystallites is higher than that of FeS_2 crystallites during sulfidation annealing.
硫化过程中In2S3比FeS2有更高的结晶速率。 - In this paper, a method for representing geometric factors of the crankshaft surface crack and an expression for the crankshaft crack propagation rate are proposed. The Paris empirical formula is also revised.
并提出曲轴表面裂纹几何因子的表达方法和曲轴裂纹扩展速率的表达式，对Paris经验公式进行修正。 - The higher the temperature and dissolved oxygen, the faster the propagation rate.
温度和溶解氧越高，繁殖速率越快。