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裂纹     
相关语句
  crack
    Propagation and Environmental Propagation of the Indentation Crack of Ferroelectric Materials
    铁电材料压痕裂纹的开裂与环境开裂
短句来源
    STUDY ON THE FATIGUE CRACK PROPAGATION CHARACTERISTICS OF ACRYLIC SHEETS
    YB-3和YB-4航空有机玻璃疲劳裂纹扩展特性的研究
短句来源
    INTERACTION BETWEEN HYDROGEN AND A TYPE Ⅲ CRACK
    Ⅲ型裂纹剪应力场和氢的互作用
短句来源
    FRACTURE TOUGHNESS MEASUREMENT OF CAST MAGNESIUM ALLOY BY CYLINDRICAL SPECIMEN WITH RING-SHAPED CRACK
    用环状裂纹圆柱试样测定铸镁合金的断裂韧度
短句来源
    LASER MICRO-SPECKLE INTERFEROMETRY AND ITS APPLICATION IN THE MEASUREMENT OF INPLANE DISPLACEMENT IN THE VICINITY OF A CRACK TIP
    激光显微散斑干涉和它在裂纹尖端附近面内位移场测量中的应用
短句来源
更多       
  cracks
    A Probe into the Breakdwon Pressure of the Cylindrical Vessel with Synclinal Cracks
    对带斜裂纹圆筒形容器断裂压的探讨
短句来源
    GROWTH BEHAVIOR OF FATIGUE CRACKS AND CRACK CLOSURE EFFECT IN 8090 ALUMINIUM-LITHIUM ALLOY
    8090铝锂合金疲劳裂纹扩展行为与裂纹闭合效应
短句来源
    Fracture Mechanics Analysis and Safety Evaluation for Roller Shaft of TSG 450×800 Sugar Press with Various Kinds of Cracks
    带多种裂纹TSG450×800榨机辊轴断裂力学安全评定
短句来源
    Cracks formation of ceramics powder compact by planar explosive consolidation
    陶瓷粉末平面爆炸烧结裂纹的形成
短句来源
    DYNAMIC OBSERVATION OF PROPAGATING PROCESS OF CRACKS IN Si_3N_4-BASED CERAMICS
    Si_3N_4基陶瓷裂纹扩展过程的动态观察
短句来源
更多       
  the crack
    Photoelastic Determination of Mixed-mode Stress-intensity Factors K_Ⅰ,K_Ⅱ for the Crack
    用光弹性法测定复合型裂纹应力强度因子K_ⅠK_Ⅱ
短句来源
    STUDY OF A NOVEL COMPOSITES COMPONENT OF ACTIVLY CONTROL THE CRACK GROWTH
    主动控制裂纹扩展的一种新型复合材料构件的研究
短句来源
    The Plastic Zones Propagation at the Crack Tip Under Dynamic Load
    动态裂纹尖端塑性区扩展
短句来源
    THE CRACK PROBLEMS FOR FUNCTIONALLY GRADIENT MATERIALS
    梯度功能材料的裂纹问题
短句来源
    RESEARCH ON THE RELATIONSHIP BETWEEN THE CRACK DISTRIBUTION AND THE WEIBULL MODULUS
    裂纹分布与Weibull模数关系的研究
短句来源
更多       
  craze
    At last, the theoretical analysis and experimental observation about the craze damage zone around crack-tip and its evolvement with time, its interaction with crack were carried out in this paper.
    本文最后对裂尖银纹损伤区演化现象、与裂纹的相互作用进行了理论分析和实验观测。
短句来源
    studied the phenomenon of polymeric craze in 1950,based on their different knowledge backgrounds and by the different technica and methods, the researchers have carried out the extensive research on craze from different viewpoints and put forward each standpoint and established some relative models, such as the construction models and mechanic ones of craze, mechanic criterions and microscopic mechanisms on the initiation and shape of craze and models of stress distribution of craze damage at the tip of crack etc.
    自 1949 年 Sauer 和 Hsiao 等人研究聚合物的银纹现象以来,学者们基于不同的知识背景,运用不同的研究技术和方法,从不同角度对银纹进行了广泛研究,并提出了各自的观点,建立了一些相应的模型。 如有银纹的结构模型和力学模型、银纹形成和引发的力学判据及其微观机理和裂纹尖端银纹损伤的应力分布模型等。
短句来源
    The acoustic emission event and its distribution in amplitude, broad, ring-down count, and dislocation during continuous and repeated loading of single edge notched PS sheet were measured. It was convinced that the acoustic emission of samples during extension came from the deformation, rupture, and propagation of crack-tip craze. The majority of the total ring-down count during experiment was contributed by the subc-ritical and unstable crack propagation of pre-cut crack.
    本文测定了单边裂纹聚苯乙烯(PS)样品在拉伸加载时的声发射以及声发射事件按幅度、脉宽、计数和位置的分布,实验证实,单边裂纹PS样品拉伸时的声发射来源于裂纹端部银纹区的变形、断裂和扩展,大部分总振铃计数由裂纹亚临界和失稳扩展引起,在重复加载时观察到PS声发射的Kaiser效应。
短句来源
    Some important mechanical properties of oriented polymer molecular bundles within the craze profile have been analogically investigated on simple tensile specimen by laser speckle interferometry.
    本文用简单拉伸模拟扣激光散斑干涉试验研究了某些固体高分子材料在出现宏观裂纹之前的银纹中纤维束分子定向影响、非线性特性等一些重要力学特性。
短句来源
    We discuss in this paper the interphase based on reinforcing fiber,matrix carbon,craze, slit and the oxidation resistant coating.
    本文从增强纤维、基体碳、裂纹、孔隙和抗氧化涂层几方面来讨论界面层问题。
短句来源

 

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  crack
The relationship between medial crack length and normal loading was also investigated when specimens were indented by symmetrical wedges with interior angles of 30°-120°.
      
Crack fault quantitative diagnosis based on finite element of B-spline wavelet on the interval
      
The model-based forward and inverse problems in the diagnosis of structural crack faults were studied.
      
The forward problem is to solve the natural frequencies through a cracked structural model and the inverse problem is to quantitatively determine the crack parameters using the experimental testing frequencies.
      
Then, the one-dimensional crack element of B-spline wavelet on the interval (BSWI) was built to solve the forward problem.
      
更多          
  cracks
Plane elastic problems of different media with cracks on the interface
      
The equilibrium problem for the infinite elastic plane consisting of two different media with many cracks on the interface is discussed.
      
Low pit aspiration ratio and cracks of some bordered pits are the main reasons for the increase in liquid penetration after RFVD treatment.
      
Initiation and propagation laws of the glass cracks in specimens subjected to normal loading under the action of symmetric wedge
      
To improve the machining precision of part surfaces and to facilitate tool design and cutting parameter selection, the initiation and propagation laws of glass cracks in specimens subjected to normal loading by symmetric wedges were investigated.
      
更多          
  the crack
The forward problem is to solve the natural frequencies through a cracked structural model and the inverse problem is to quantitatively determine the crack parameters using the experimental testing frequencies.
      
By analyzing the bifurcation plot, Poincare section plots and amplitude spectra, we found that the crack greatly influences the dynamic characteristics of the rotor-bearing system.
      
The effect of hydrogen on the susceptibility is more obvious in the low stress region due to the longer fracture time, which resulted in a longer time for more hydrogen to diffuse toward the crack tip.
      
The results showed that an interaction between stress and hydrogen at the crack tip could increase the anodic dissolution rate remarkably.
      
Utilizing the obtained load against crack opening displacement curve, the value of GI-bridging at any crack extension as well as the change of GI-bridging with the crack extension is examined.
      
更多          
  craze
The preliminary orientation of polymers provides an efficient means for control over the craze density and the volume fraction of fibrillar polymer material in crazes.
      
Lining craze, as a common engineering damage, affects the bearing capacity and the safety of tunnels.
      
To simulate fracture behavior of craze region, it is assumed that in the fracture process zone near the crack tip, the cohesive stress σf acts upon the crack surfaces and resists crack opening.
      
This slow crack growth failure is characterized by localized craze growth and craze fibril rupture.
      
We show in this paper the importance of the craze fibril length as the determining factor for the pipe lifetime.
      
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