Note that these contours do not encompass the crack tip.
注意这些围道，都不包含裂信尖端。
Local cleavage fracture might happen in the front of crack tip.
裂尖前方可能发生形变孪晶，裂纹沿孪晶界扩展。
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。
Stress analysis in variation states at crack tip and notch crown tip is presented.
分析了椭圆孔口端点和裂纹端点处的变动态应力。
The ground area was also checked with dye-penetrant to ensure that no crack tip remained.
打磨区也用着色渗透剂进行了检查，以便确保无裂纹尖端留存。
There is a fracture process zone near the crack tip for the tensile strain softening materials.
在应变软化材料的主裂缝尖端存在一断裂过渡区。
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。
It is found that opposite sign dislocations appear on the slip plane immediately ahead of the crack tip.
结果指出，在紧靠裂纹顶端的滑移面上出现和裂纹位错异号的位错。
The magnetic flux density on the crack tip in a metal pipeline was studied by numerical simulation method.
用数值模拟方法研究了金属管道裂纹尖端磁通量密度的分布情况。
The influence of cold expansion on the stress intensity factor distribution in crack tip was also analyzed.
分析了冷扩张对疲劳裂纹尖端应力强度因子分布的影响。
The transient displacement field and the dynamic stress intensity factor at the moving crack tip are obtained.
给出了瞬态的位移场和运动裂纹尖端的动态应力强度因子。
Numerical solution of these equations yields the intensity factors and the energy release rate at the crack tip.
求解这些方程组，获得了裂纹尖端的强度因子和能量释放率。
Crack propagation is affected by many factors, among which, the crack tip plastic zone attracts a lot of attention.
影响裂纹扩展的因素有许多，这其中，裂纹尖端塑性区引起众多研究者的兴趣。
The temperature field and thermal stress field on the crack tip in a metal was studied by numerical simulation method.
用数值模拟方法研究了金属裂纹尖端的温度场和热应力场的分布情况。
These negative dislocations seem to enter the crack tip and blunt it, resulting in a dislocation-free zone at the crack tip.
这些负号位错将移至裂纹顶端并使之钝化而留下一个无位错区或低位错密度区。
The crack tip stress-strain field of elastic-plastic materials are analysed by finite element method in the plane stress condition.
用有限元方法对平面应力条件下弹塑性材料的裂纹尖端应力应变场进行了计算。
The elastostatic field near the interface crack tip between two incompressible materials is analyzed with the fully nonlinear theory.
采用完全非线性弹性理论，研究了两类不可压缩材料形成的界面裂纹尖端场。
The dislocation distribution function in the plastic zone at a crack tip is calculated with the help of a modified BCS-type crack model.
本文改进BCS型裂纹位错模型，并对裂纹顶端范性区的位错密度分布进行了计算。
By comparing fatigue crack with electrosparking crack, the effects of crack tip on fracture toughness of ductile iron have been studied.
通过开疲劳裂纹和线切割裂纹的对比试验，研究裂纹尖端的尖锐程度对球墨铸铁断裂韧性的影响；
The relative equation between stress intensity factor and displacement field near interface crack tip of bimaterials was derived firstly.
首先推导了双材料界面裂纹尖端的位移场和应力强度因子之间的关系式。
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。
The analysis shows that the compressive loading has a significant contribution towards the crack tip plasticity and the fatigue crack growth.
通过分析表明，压应力对裂纹尖端塑性区和疲劳裂纹的扩展有显著的影响。
On the theory of dislocation free zone, crack tip emitted the dislocations , which piled up the tangled in ahead of the intermetallic compounds.
根据位错贫化带理论，裂纹尖端发射的位错将在沉淀析出的金属间化合物前塞积和缠结。
The size of current path, resistivity, power density are main factors that effect the temperature field and temperature gradient field at crack tip.
试件的通流尺寸、电阻率、导入电流密度是影响裂纹尖端温度场和温度梯度场的主要因素。
An elastic viscoplastic material model was adopted to the asymptotic analysis on power law and logarithmic singularity of dynamic growing crack tip.
本文利用弹-粘-塑性材料力学模型，对动态扩展裂纹尖端的指数奇异性和对数奇异性进行了渐近分析。
For the isotropic plastic material, the anisotropic plastic stress fields at a slowly propagating crack tip become the perfectly plastic stress fields.
对于各向同性塑性材料，缓慢扩展裂纹尖端的各向异性塑性应力场就变成理想塑性应力场。
The results of whole experiment indicate that applying electro-deposition technology will be an effective method of blunting crack tip and healing crack.
从整个试验所得的效果来看，将来应用电沉积技术来钝化甚至愈合混凝土的裂纹是一种行之有效的方法。
The authors suggest that this effect is due to the change in the strain rate of crack tip metal thus altering the thermodynamics of crack onset and growth.
作者认为载荷频率的上述影响是因裂纹尖端的应变速率随载荷频率而变化，从而改变了裂纹起始与扩展的热力学条件。
The notch sensitivity of HSC and steel fiber reinforced HSC and the strain field of HSC reinforced with steel fibers ahead of the crack tip have been analyzed.
分析了钢纤维高强混凝土和普通高强混凝土的缺口敏感性以及钢纤维对高强混凝土裂缝前缘应变场分布的影响。
The research methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack tip and crack expansibility.
从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
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