The superiority of this design over the conventional one will reveal itself in the studies on the mechanisms of crack initiation and growth in fatigue process under bending condition.
这种等应力试样在研究弯曲疲劳，尤其是在弯曲条件下研究疲劳过程中裂纹产生和扩展机理时，将显示出明显的优越性。
Crack initiation and propagation process in A356 aluminium alloy under impact load have been investigated.
研究了A356铝合金在冲击载荷作用下的裂纹萌生及其扩展过程。
In the process of plastic deformation, crack initiation and growth, and impact, the characteristics of acoustic emission (AE) signals and the factors that affect them are also elaborately discussed.
对塑性变形过程、裂纹的萌生和扩展过程以及冲击过程的声发射特点及其内部成因也做了深入的分析。
The results showed that manufacturing defects of the bolt resulted in initiation and propagation of fatigue crack, and uneven loading of the bolt speeded up failure process of fatigue fracture.
确认螺栓机加工不当引起疲劳裂纹的萌生及扩展，加之螺栓受力不均匀加速了疲劳断裂过程。
Introducing the initial damage parameters of coal surface obtained by digital image processing in model, got the failure process corresponding stress state under the crack initiation and expansion.
将数字图像处理煤体表面得到的初始损伤参数引入所建立的模型中，得到了相应受力状态下的裂纹起裂、扩展破坏过程。
The micro process of crack initiation and propagation in austempered ductile iron has been investigated by scanning electron microscope with a micro tensile stage.
用扫描电子显微镜及微拉伸台对奥氏体- 贝氏体球墨铸铁裂纹萌生、扩展的微观过程进行了跟踪观察。
The fracture process can be separated into four characteristic regions. Correspondngly, there exist two threshold stress intensity factors both for crack initiation and f…
断裂过程可区分为四个特征区，相应有表征启裂和稳态裂纹扩展的界限应力强度因子。
With the increase of external loading, AE instrument can exactly locate the position of crack initiation and propagation; and AE location events can reflect the stable crack propagation process.
随着加载的进行，声发射仪器精确地定位出其裂纹初始位置、扩展方向，并直观地反映出其内部裂纹稳定扩展过程。
The micro process of crack initiation and propagation in H68 brass with low stock fault energy was observed by in situ tensile test in TEM.
采用透射电镜动态拉伸、原位观察研究了低层错能合金H68黄铜断裂的微观过程。
The process of crack initiation and propagation was observed through replication, and the effect of grain size on the behaviour of short fatigue cracks was studied.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.
结果表明，该模型可很好地预测延性金属材料自裂纹萌生、扩展直至完全断裂的全过程。
The dies are subject to alternating stresses due to loading and unloading during the deformation process and this causes crack initiation and eventual failure.
在变形加工过程中，由于加载、减载、模具承受交变应力作用，这就将引起开裂并发生重大破坏。
Q-P process significantly improve crack initiation and propagation resistance of 300M steel, and extend the uniform plastic deformation stage of the material, and finally put off the necking creation.
Q-P工艺明显提高了300M钢抗裂纹形成和扩展的能力，延长了材料的均匀塑形变形阶段，推迟缩颈发生。
It is the characteristic of the deformation of PET fibers that the shear bands occur and lead to the crack initiation during the process of the deformation.
剪切带的出现和由此引起微裂缝的发生是PET纤维拉伸形变的主要特征，而个别大分子束的断裂形成裂缝的广泛出现则是PAN纤维的主要特征。
It is the characteristic of the deformation of PET fibers that the shear bands occur and lead to the crack initiation during the process of the deformation.
剪切带的出现和由此引起微裂缝的发生是PET纤维拉伸形变的主要特征，而个别大分子束的断裂形成裂缝的广泛出现则是PAN纤维的主要特征。
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