Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算，最后反推出叶片在旋转状态下振动应力值的大小。
The influence of inclusion on crack Stress Intensity Factor(SIF) of Powder Metallurgy(PM) FGH 95 was investigated using singular element method with fine mesh at crack front.
采用有限元方法中的奇异单元，研究了当粉末高温合金FGH 95中存在由夹杂引起的裂纹时，夹杂对裂纹应力强度因子的影响；
Through analyzes around the wellbore stress field and the crack stress field, has established around separately the wellbore stress field model and the crack effective stress model.
通过分析井筒周围应力场和裂缝应力场，分别建立了井筒周围应力场模型和裂缝的有效应力模型。
Now, researchers have taken a crack at understanding this connection by looking for differences in how the brains of people from urban and rural environments react to certain kinds of stress.
现在，研究者通过分析来自城市和来自农村人的大脑对这些压力的反应来寻找其关联。
Stress corrosion cracking problem of concrete beams with crack is studied in this paper.
本文研究了带裂纹混凝土梁的应力腐蚀断裂问题。
Solves the problem of boundary value on an annular crack by using the nonlocal stress solution of an axisymmetric crack problem and approximative method of series expansion.
利用已得到的三维轴对称问题的非局部弹性应力的解，采用级数近似展开的方法，求解环状裂纹的边值问题。
Is mainly the size effect and solidification, shrinkage, stress and other issues clearly, to avoid or reduce the segregation, iron manhole cover deformation and crack defects.
主要是明显的尺寸效应和凝固、收缩、应力等问题，避免或减少铸铁井盖的成分偏析、变形、开裂等缺陷的产生。
Stress intensity factor (k). A factor used in fracture mechanics to specify the stress intensity at the tip of a crack.
应力强度因子(K)：断裂力学中使用的一个因子，说明裂纹尖端处的应力强度。
Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.
中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有：铸造缺陷，应力集中，焊接和热处理质量问题等。
Only if this short crack extends long enough and blunted wide enough, can it affect the principal crack extension and the distribution of stress and plastic strain.
只有小裂纹扩展到足够长并钝化到足够宽，才能够影响主裂纹的扩展及其前端应力、应变的分布。
Under the action of tensile stress and tensile stress, the bolt with relatively low strength will crack first, and then the fatigue fracture will occur.
在拉应力和应拉力交替的作用下，强度相对较低的螺栓会先产生裂纹，进而发生疲劳断裂。
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 fatigue properties were researched and found that the crack propagation velocity and the decline of rigidity were related to the maximum cycle stress.
通过对其疲劳性能的实验研究，发现裂纹扩展速率的大小及刚度的下降与加载的最大循环应力密切相关的规律。
Plating into a transition (radius transition or undercut) will create a stress concentration that can cause crack initiation.
如果过渡段被电镀(倒角和内切槽)将会产生应力集中，造成裂纹。
The results show that when the annular crack is away from the interface, the normalized stress intensity factors at the crack tips decrease with increasing time.
结果表明，给定长度的环形裂纹在尚未接触界面时，其两端正则化的型和型应力强度因子均随时间增大而减小。
Bearing parts in the process of hardening cooling by internal stress due to the formation of quenching cracks crack said.
轴承零件在淬火冷却过程中因内应力所形成的裂纹称淬火裂纹。
In this paper, fracture mechanism, position and direction of crack initiation of mixed mode fracture in several ductile materials are tested, and stress distributions of which are analyzed.
应用传统强度理论和细观力学方法对几种韧性材料在复合载荷条件下的断裂机理、启裂位置、开裂方向进行了实验分析和应力场计算。
This paper mainly introduces the stainless steel corrosion, especially the serious accidents caused by the austenitic stainless steel stress corrosion crack.
论文主要介绍了不锈钢的腐蚀尤其对奥氏体不锈钢的应力腐蚀开裂引起的严重事故。
The results show that metallurgical defect is the main reason leading to early formation of fatigue crack under normal working stress.
认为，该曲轴材料的冶金缺陷是导致疲劳裂纹在正常工作应力下过早形成的原因。
The results show that the failure of the tube is due to stress corrosion crack propagation.
结果表明，该进气管断裂系由于应力腐蚀裂纹失稳扩展所造成。
The results show that the accuracy for crack tip stress intensity factor using ANSYS software is enough for engineering designs and analysis.
研究结果表明，ANSYS程序裂纹尖端应力强度因子计算方法的计算精度可以满足工程设计和分析需要。
Based on the analysis of crack and residual stress, mechanical property of Laser Rapid Forming sample is studied.
在裂纹和残余应力分析的基础上，研究激光快速成形件的力学性能。
Carbon fibers restrained the matrix cracks growth and diminished the crack tip stress intensity factor.
纤维对基体开裂起抑制作用并降低了裂纹尖端的应力集中。
The high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crack path.
较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。
The temperature field, stress, critical crack size as well as the interior quality of the rolls are presented.
介绍了该类轧辊的温度、应力状态、临界裂纹尺寸及内部质量情况。
The stress field near crack tip is an important factor to effect crack extension.
裂纹缺陷周围的应力变形场是影响裂纹扩展的重要因素。
This article introduced briefly the analysed method of stress corrosion crack, main factors which caused stress corrosion crack and its preventing method.
简要介绍了应力腐蚀开裂的分析方法、引起压力容器应力腐蚀开裂的主要因素及防止措施。
This article introduced briefly the analysed method of stress corrosion crack, main factors which caused stress corrosion crack and its preventing method.
简要介绍了应力腐蚀开裂的分析方法、引起压力容器应力腐蚀开裂的主要因素及防止措施。
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