The fracture process and interface of the composites were also observed by TEM and SEM.
混凝土是一种典型的非均匀准脆性材料,其断裂过程是非常复杂的。
The substructure and the fracture process of mullite ceramics were studied by TEM and SEM.
用透射电镜和扫描电镜研究了莫来石陶瓷的亚结构特征和断裂过程。
The blasting damage and fracture process of rock is complicated dynamic evolvement process.
岩石爆破损伤断裂过程是一个复杂的动态演化过程。
The fracture process of the long strands of single-wall carbon nanotubes bundles is observed.
试验中观察了单壁碳纳米管束长绳的断裂过程。
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。
The analytical formula for the radius of intermittent zonal fracture process of rock is deduced.
推导了岩石间隔性区域断裂半径的计算公式。
Numerical method for crack extension analysis based on fatigue fracture process of rock materials;
工程控制爆破 ,要研究岩石的定向断裂的裂纹扩展。
The mechanical properties and fracture process observation was studied by in-situ tensile test of 93w-y2o3.
研究93 W - Y 2o 3合金的力学性能,并通过扫描电镜原位拉伸试验观察93W - Y 2o 3合金的断裂过程。
Two dynamic ice force functions were separately set up for the two modes of two-time fracture process in this paper.
本文针对二次断裂进程的两种模式,分别提出了两种模式下柔性锥体结构上的概化冰力函数。
Concrete is a typical heterogeneous quasi-brittle material used in engineering, and its fracture process is very complex.
混凝土是一种典型的非均匀准脆性材料,其断裂过程是非常复杂的。
In this paper, the fracture process in creep of main steam pipeline is studied by metallographical and fracture mechanics.
本文以金相分析与断裂力学方法研究了主蒸汽管道蠕变破裂过程。
Nonlinear fracture behaviors of concrete materials are mainly caused by the cohesive stress along the fracture process zone.
混凝土裂缝端部断裂过程区的粘聚力分布是导致混凝土断裂呈现非线性特性的重要原因。
The quantitative characterization of the microdefects of rock fracture process has always been the key of CT image analysis.
岩石在断裂破坏过程中微缺陷的定量描述始终是CT图像分析的关键。
The finite element method is used to simulate tensile fracture process of slope with single weak plane under strong earthquake.
用有限元模拟了单一弱面斜坡强震作用下的拉张破裂过程。
Existence of the FPZ (Fracture Process Zone) ahead of crack tip is proposed as the reason for underestimating interface toughness.
裂纹尖端前的断裂作用区域的存在被认为是以上方法估计不足的原因。
Using the method of J-integral with cantilever beam specimens, the environmental fracture process of structural steels was studied.
用悬臂梁j积分法研究了结构钢的环境断裂过程。
The intrinsic mechanism of energy conversion and failure process in the intermittent regional fracture process of rock is discussed.
讨论了岩石间隔性区域断裂过程中能量转化与岩石破坏的内在机制。
The dynamic fracture process of sea ice interacting with JZ20-2NW platform is performed on the basis of finite element software—LS-DYNA.
通过有限元软件LS-DYNA模拟了海冰与JZ20-2NW北高平台相互作用的动态断裂过程。
The thin thickness small diameter brass antenna casing is introduced and plastic deformation theory in tension fracture process is analyzed.
介绍了开发研制的黄铜薄壁小直径天线套管,并对拉伸断裂的塑性变形理论进行了分析探讨。
The results according with other models and laboratory experiments show that the percolation mode is a suitable model for describing rock fracture process.
所得结果与其他模型和实验基本一致,表明通渗模型是描述岩石破裂扩展演化过程的一种较合适的模型。
The law of charge induction of coal in the same mine during the coal deformation and fracture process is studied under different loading rates in laboratory.
通过室内试验,研究同一矿区煤在不同加载速率下的变形破裂过程的电荷感应规律。
The damage and fracture process of the composite are detected by acoustic emission. The experiment proves the simulating structure to be rational and feasible.
用声发射方法检测了复合材料损伤与断裂的全过程,证明了该结构的合理性与可行性。
The fracture process can be separated into four characteristic regions. Correspondngly, there exist two threshold stress intensity factors both for crack init…
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。
The fracture process observed by SEM with a dynamic tensile stage showed that the dispersed phase of TLCP could delay and block the propagation of microcracks.
使用带拉伸实验台的扫描电镜观察到了TLCP微纤或微球对微裂纹扩展的阻滞及延缓作用。
The EMR was positively correlated with the load, deformation and fracture process of coal or rock. The EMR technology could be widely applied in predicting and f…
煤岩电磁辐射技术在预测预报煤与瓦斯突出等方面有着非常广阔的应用前景。
The present paper explores new and more profound approaches, namely microscopic and nanoscopic fracture mechanics, to unlock the black box of fracture process zones.
本文探索打开断裂过程区的黑匣子之更深层次的研究——即细观断裂力学与纳观断裂力学。
This fracture process is one of the reasons of the dispersivity of strength for composite and its value is often lower than values calculated with ROM in most cases.
这样的断裂过程正是复合材料的强度具有离散性及往往低于ROM计算值的原因之一。
The microstructure and fracture process of an eutectoid pearlitic steel have been observation and analysed by means of electron-diffraction-contrast technique and SEM.
应用电子衍衬技术和扫描电镜等手段,对共析珠光体轨钢的微观结构和断裂过程,进行了观察和分析。
Tensile and pressure-shear numerical tests are carried on the concrete specimens with precast cracks, and the tensile fracture and shear fracture process are obtained.
对预制裂纹的混凝土试件进行拉伸、压剪数值试验,得到混凝土拉伸断裂及压剪断裂破坏过程;
The cracking mechanism based on non linear fracture model for rock concrete materials is proposed and micro mechanical model for fracture process zone (FPZ) established.
提出了一种描述岩石、混凝土类材料断裂损伤过程区的细观力学模型,用于分析材料的非线性断裂的微观机理。
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