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裂纹路径
相关语句
  crack path
     The coalescence between shortcracks leads to crack propagation and the crack path is predominantly transgranular.
     短裂纹的汇合造成裂纹发展且裂纹路径以穿晶为主。
短句来源
     The results indicate that the value for critical factor of fracture caused by short crack damage covers a wide range and the crack path possesses a stable value of fractal dimension.
     模拟结果显示,短裂纹损伤导致断裂的临界指数具有很宽的分布带,而裂纹路径具有较稳定的分维数值。
短句来源
     The final state of the fatigue cracks evolution is largely scatter that represented as random crack path and life scatter.
     疲劳裂纹系统的演化终态具有很大的分散性 ,主要表现为裂纹路径的随机性和突变寿命的分散性 .
短句来源
     The translamellar fracture and interlamellar fracture are the dominant fracture mode and the crack path is very rough.
     在整个断裂过程中断裂是穿层断裂和沿层断裂的混合体,裂纹路径较曲折。
短句来源
  “裂纹路径”译为未确定词的双语例句
     This is formed by the cracks oscillating about the centerline in the direction of crack propagation.
     数值模拟的结果显示裂纹尖端沿正弦状曲线快速扩展,并且,在不同的双轴应变下,计算了裂纹路径的波长和振幅,与Deegan等人的实验结果相符。
短句来源
     It was observed that there was a direct connection between the fractographs, the fracture path and the crack tip crazes or microcracks in rib region.
     发现断面形态、裂纹路径以及肋状区裂端簇射状银纹群之间有直接联系。
短句来源
     Based on the analysis of fatigue fracture mechanism,it was concluded that the superior fatigue crack growth resistance of the dualphase structure was attributed to the roughness-induced crack closure effect and deflection effect as well, which reduced the effective driving force at the crack tip.
     断裂力学分析表明,粗糙度诱发裂纹闭合效应及裂纹路径弯折效应是提高裂纹扩展抗力的主要因素,同时得到上述两种效应对裂纹扩展速率影响的表达式。
短句来源
     The concepts of interfacial fracture energy and mode mixity are used to investigate the growth paths of interfacial cracks. Numerical approach based on the finite element method is applied to calculate the energy release rate and to simulate the growth process of a crack. Various configurations of interfacial fracture of bimaterials can be simulated.
     利用界面断裂能和荷载混合度的概念研究界面裂纹的扩展路径,利用有限元数值方法模拟界面裂纹的扩展过程,再现界面断裂的各种几何构型.研究表明,界面的断裂能和混合度完全控制了裂纹在界面附近的扩展过程.数值预测的裂纹路径与理论结果一致
短句来源
     For duplex microstructure,because the grain size was very fine,the stress concentration appeared at the notch root,then the cracks was initiated and propagated along grain boundary and lamellar interfaces,so that the main crack propagation path was straighter.
     对于双态组织,由于晶粒尺寸小,应力集中出现在缺口根部,裂纹沿晶粒边界和层间起裂并扩展,裂纹路径比较平直.
短句来源
  相似匹配句对
     The crack propagation path follows some regularity on the whole.
     裂纹扩展路径总体上遵循一定的规律。
短句来源
     On the growth track of asymmetrical I-crack near surface
     表面附近I型非对称裂纹扩展路径的评价
短句来源
     A Walk Along the Signal Path
     信号路径设计
短句来源
     BETTERING PATHS IN HOLING FOR CIRCUIT BOARDS
     较佳路径
短句来源
     Crack Analysis of Barrel
     枪管裂纹分析
短句来源
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  crack path
From the point of view of a designer, it is clearly desirable to determine the behavior of sub-critical crack growth; the crack path and crack growth rate, as a function of material properties and loading conditions are of particular interest.
      
It was found that good-quality composite-to-concrete bond is associated with high fracture toughness of the adhesive and location of the crack path in the concrete substrate.
      
The structure of the crack path in well-dispersed systems was different from the path profile observed with the poorly dispersed systems.
      
Possible instability of a rectilinear crack path in an orthotropic plane at uniaxial normal tension
      
A class of orthotropic materials for which the rectilinear crack path proves to be unstable even in the case of uniaxial normal tension applied at infinity is found.
      
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The rib fractography of cross-linked PMMA has been explored by optical microscopy. It was observed that there was a direct connection between the fractographs, the fracture path and the crack tip crazes or microcracks in rib region. The rib consisted of one sandmark and one rough shattered belts. The former corresponded to peeling at the wedge craze/solid polymer interface, the later to shearing of microcrack shower which was formed ahead of sharpened crack tip. These two processes may be explained by "slip-stick"...

The rib fractography of cross-linked PMMA has been explored by optical microscopy. It was observed that there was a direct connection between the fractographs, the fracture path and the crack tip crazes or microcracks in rib region. The rib consisted of one sandmark and one rough shattered belts. The former corresponded to peeling at the wedge craze/solid polymer interface, the later to shearing of microcrack shower which was formed ahead of sharpened crack tip. These two processes may be explained by "slip-stick" model. It was observed on unstable rib that the crack propagation mechanisms in both mist and rib regions may transfer into each other.

用光学显微镜观察了交联有机玻璃断面上的肋状形态。发现断面形态、裂纹路径以及肋状区裂端簇射状银纹群之间有直接联系。每一肋条由一细砂带和一粗破带构成。前者对应于裂端楔形银纹/固体聚合物之间界面的剥离;后者对应于剥离后锐化裂端银纹群之间的剪切;这两个交替过程可以用“滑-粘”模型来解释。在不稳定肋状区发现到裂纹在霉纹区和肋状区的扩展机理是可以相互转化的。

The fatigue tests were made on the specially designed specimens by avibration testing machine to investigate the initiation and propagation features ofshort fatigue cracks in a weld metal. The specimens were prepared of a kindof triangular shape in which the surface tensile stress is a constant. The resultsshow that the short fatigue cracks originate from the slip bands and initiate insidethe ferrite grains. The development of short fatigue cracks is marked by the grad-ual increase in crack density with fatigue...

The fatigue tests were made on the specially designed specimens by avibration testing machine to investigate the initiation and propagation features ofshort fatigue cracks in a weld metal. The specimens were prepared of a kindof triangular shape in which the surface tensile stress is a constant. The resultsshow that the short fatigue cracks originate from the slip bands and initiate insidethe ferrite grains. The development of short fatigue cracks is marked by the grad-ual increase in crack density with fatigue cycles. The coalescence between shortcracks leads to crack propagation and the crack path is predominantly transgranular.

设计了一种三角形试样,当施加弯曲载荷时,该试样等腰三角形段内的表面拉应力为常数。采用振动试验机对所设计的试样进行疲劳试验,以研究一种焊接金属表面疲劳短裂纹萌生和发展特征。结果表明,疲劳短裂纹起源于铁素体晶内的滑移带。随疲劳周次增加,短裂纹发展以裂纹密度不断增加为主要特征。短裂纹的汇合造成裂纹发展且裂纹路径以穿晶为主。

The behaviour of austenite in the crack initiation and propagation of low cyclic fatigue for triphase steel (F-M-A) was observed in situ under SEM with fatigue loading stage. Results showed that the austenite in triphase steel during the crack initiation and early propasation of low cyclic fatigue may decrease the fatigue notch sensitivity and prolong the cyclic number of fatigue crack initiation, so as to flex the propagation path and to reduce the propagation rate of the cracks. At high strain fatigue stage,...

The behaviour of austenite in the crack initiation and propagation of low cyclic fatigue for triphase steel (F-M-A) was observed in situ under SEM with fatigue loading stage. Results showed that the austenite in triphase steel during the crack initiation and early propasation of low cyclic fatigue may decrease the fatigue notch sensitivity and prolong the cyclic number of fatigue crack initiation, so as to flex the propagation path and to reduce the propagation rate of the cracks. At high strain fatigue stage, the strain-induced transformation of austenite may form the martensite, of which has the boundaries of low energy path for cracks propagation, the cracks may propagate more rapidly. Furthermore, an energy criterion was proposed, i, e., when the propagation work at crack tip is less than energy transformed from austenite into martensite, the fatigue resistance of steel may be improved by austenite, on the contrary, the crack initiation and propagation accelerated

用扫描电子显微镜疲劳加载台进行动态原位观察,研究了奥氏体(A)在(F+M+A)三相钢低周疲劳裂纹萌生和扩展过程中的作用.结果表明,在低周疲劳裂纹的萌生和早期扩展阶段,三相钢中的奥氏体会降低疲劳缺口敏感性,延长裂纹萌生期,使裂纹路径弯折并降低扩展速率.在高应变疲劳阶段,因奥氏体应变诱发相变生成马氏体,其边界是裂纹扩展的低能通道,从而加速裂纹的扩展.并提出了一个能量判据:当裂尖扩展功小于A→M转变的能量时,奥氏体会提高材料的疲劳抗力,反之奥氏体会加速疲劳裂纹的萌生和扩展.

 
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