脆性材料

含裂隙水脆性材料单轴压缩CT分析

CT analyses of brittle materials under hydraulic Pressure and uniaxial compression

基于SEM图像分维估算的脆性材料细观结构演化方法研究

Analysis on Meso-structure evolution of brittle materials based on estimation of fractal demensions of SEM images

碳纤维属于脆性材料，用扫描电子显微镜（SEM）可以直接观察到它的表面和内部缺陷。

Carbon fibre is known as a brittle material . Its surface and inner defects can be directly observed by SEM .

3D机织复合材料的拉伸曲线无屈服点，是脆性材料；

There is no yield point strength at load-displacement curves of all kinds of 3D woven composites , which shows that the composites are brittle material ;

按照临界点理论，在大地震或岩石等脆性材料破坏发生之前能量会加速释放（AER），这种加速过程呈幂律变化（PowerLaw）。

According to the critical point hypothesis ( CPH ), energy release would accelerate in power law before occurrence of large earthquakes or failure of brittle materials .

烧结Nd-Fe-B永磁材料是一种脆性材料。

Sintered Nd-Fe-B permanent magnetic materials are very brittle .

用于脆性材料的Hopkinson压杆动态实验新方法

A Novel Experimental Method of Hopkinson Pressure Bar System for Brittle Material

脆性材料SHPB实验技术的研究

Research on SHPB testing technique for brittle material

Hopkinson压杆对准脆性材料的动态力学实验研究

Experimental study of dynamic mechanical properties for Quasi-brittle materials using the split Hopkinson pressure bar

与Oliver利用Petrov&Galerkin法离散单元相比，这一算法在脆性材料的破坏计算中显示出了在计算效率上的突出优势。

In contrast with the traditional Petrov-Galerkin finite element method , this algorithm shows outstanding advantage on the computational efficiency aspect .

结果表明，Al2O3陶瓷为弹脆性材料，其动态应力应变呈非线性关系，在较高的应变率范围内，陶瓷材料的动态应力应变关系是应变率相关的；

It is shown that the tested ceramic is nonlinear elastic-brittle material and insensitive to strain-rates in lower ranges but sensitive in higher ranges .

结果表明ADI叶片的磨蚀情况不同于灰口铸铁等一般脆性材料。

The results indicated that the wear characteristic is different from the ordinary ductile materials like grey cast iron .

V形缺口三点弯曲试样主要用于极脆性材料（如硬质合金、陶瓷等）平面应交断裂韧性（K（iC））的测试。

Three-point bending specimen with V shape notch is mainly used for tasting the plane-strain fracture toughness ( K_ ( IC )) of very brittle materials such as hardmetal , ceramic , etc.

通过柔度标定实验，证明按上述理论解的形式，可得实验柔度的最佳回归方程。从而推算出脆性材料断裂韧性K（IC）的表达式。

It is proved by compliance calibration test that the optimum regression equation for compliance values can be obtained according to the above theoretical solution , The K_ ( Ic ) expression is then derived .

聚氯乙烯（PVC）是世界上最早实现工业化生产的塑料品种之一，但PVC属于一种脆性材料，这种韧性差的缺陷大大地限制了PVC的进一步发展及广泛应用。

Polyvinyl-chloride ( PVC ) is one of the earliest industrialization production plastics in the world , but it is brittle , which defect has greatly restricted the development and the widespread application of the pvc in the further .

基于SHPB一维应力模型，提出了一种利用反射波和透射波响应确定陶瓷脆性材料动态本构参数的计算反求方法。

With the one-dimensional stress model of SHPB , an inverse technology using reflecting and transmission wave is presented to identify the parameters in constitutive model of ceramic .

因为单向炭纤维增强树脂基复合材料（UD－CFRP）属于脆性材料，它的力学性能如层间剪切强度（ILSS）的大小依赖于UD－CFRP中随机分布的缺陷。

Because carbon fibers reinforced plastic ( CFRP ) composites belong to brittle materials their mechanic properties such as interlaminar shear strength ( ILSS ) depend on stochastic defects .

利用超声辅助放电铣削五轴复合加工机床对K9光学玻璃、SiC等硬脆性材料进行了初步的加工实验，证明了系统的可用性和高精度性，为今后的进一步研究打下了坚实的基础。

Preliminary experiments have done on hard and brittle materials including K9 optical glass and SiC . Proof of the availability and accuracy of the system , and also establish the base for the further research .

为获得AFM金刚石微探针在纳米尺度上加工脆性材料的加工特性，在AFM系统上对单晶硅表面进行了刻划、加工实验。

To achieve machining characteristics of brittle materials on the nanometer scale using an AFM diamond tip as the cutting tool , scratching tests and machining tests were carried out on the surface of monocrystal silicon based on AFM .

化学气相沉积ZnS是一种脆性材料，其硬度由晶粒尺寸控制，符合Hal－Petch关系，而对晶体缺陷微孔不敏感；

Polycrystalline ZnS , as prepared by chemical vapour deposition , is considered essentially as a ceramic material . Its hardness is controlled by grain size , conformed with Hall-Petch formular , and is insensitive to micropore .

根据受扭矩圆柱体中的应力分析和Griffith脆断强度理论，提出了脆性材料的抗扭切口强度表达式。

The expression for torsion notch strength of ceramic materials was proposed based on the stress analysis of a cylinder under torsion and the theory of brittle fracture strength due to Griffith .

本文采用三维离散元方法（DM3）对脆性材料中的孔洞崩塌进行了数值模拟。

A three-dimensional discrete meso-element method ( DM3 ) is then employed in the present paper to simulate the process of void collapse .

得到的试件在不同裂纹长度下的三维J积分与它们断口图上的超声波线的形状和凸凹方向相似，说明在脆性材料中，扩展裂纹前缘曲线形态是三维J积分的作用的结果。

There are similarities between three dimensional J integrals evaluated under different crack lengths and ultrasonic lines remained in the specimens'fracture surfaces in shape and protruding direction , which indicates the configurations of propagating crack fronts in brittle materials are decided by the three dimensional J integral .

用SHPB装置研究脆性材料（硬岩、混凝土、高强度砂浆、陶瓷等）及脆性材料组构的非均一材料高应变率下的动力特性。

The dynamic characteristics in higher strain rate of brittle materials , such as hard rock , concrete , mortar and ceramics with high strength , and the non-homogeneous structural materials consisting of brittle material are researched using SHPB device .

对于脆性材料，仅在拉伸速率3.3×10-4s-1时呈现出一定的塑性，却也表明在小应变作用下其力学性能的潜力。

There appears a little plasticity only at the rate of 3.3 × 10-4s-1 for material , which demonstrates the latent capacity of mechanical property under applying little stain and stress .

运用材料真实破坏过程分析系统RFPA2D，对含多孔的脆性材料进行单轴加载情况下的破坏机制以及孔洞的尺寸效应研究。

A numerical analysis has been conducted to study hole size effects and failure mechanism of brittle materials containing multiple holes under uniaxial compression loading , by using the Realistic failure process analysis code ( RFPA2D ) .

已证实此理论对复杂的断裂过程的模拟是有效的，包括：脆性材料的断裂、韧性材料的动态断裂和破碎、混凝土的动态Bazilian测试等等。

The cohesive theory has proved effective in the simulation of complex fracture processes including : the fragmentation of brittle materials ; dynamic fracture and fragmentation of ductile materials ; and the dynamic Brazilian test for concrete .

循环荷载作用下脆性材料剪切性能试验研究

Experimental study on shear behaviors of brittle materials under cyclic loading

水工建筑物脆性材料应力模型试验问题

Problem of stress model test of brittle material for hydraulic structures

冲击压缩脆性材料中破碎波的几个问题

Some problems of fracture waves in brittle materials under shock loading