• During fracture propagation driven by detonation gas in oil well, dynamic response of crack surface under the gas pressure results in fast fracturing.

    油井爆生气体对岩石劈裂作用过程,是裂缝面对动态荷载响应使发生动态扩展的过程

    www.rockmech.org

  • The mechanical nature of 121 earthquake faults, the strikes of 40 events and the directions of fracture propagation of 15 events are discussed in this paper.

    本文研究了华北121个地震断层错动方式,40个地震断层走向15个地震断层破裂方式与扩展方向

    dict.cnki.net

  • The models and computation procedures for determining fracture propagation path were provided, and the software for simulation of fracture propagation was developed.

    提出定向射孔水力压裂裂缝延伸轨迹计算模型步骤编制了裂缝延伸模拟软件

    zuci.chaziwang.com

  • A new idea that the distribution movement of electric charge in the crack tip end being associated with rock fracture propagation produces electromagnetic emission was brought up.

    本文提出岩石破裂电磁辐射裂纹尖端电荷随着裂纹加速扩展运动产生假说。

    dict.cnki.net

  • A new idea that the distribution movement of electric charge in the cr ack tip end being associated with concrete fracture propagation produce electromagnetic emission is brought up.

    混凝土断裂电磁发射现象进行了理论研究,研究表明:混凝土断裂电磁发射由于裂纹尖端电荷随着裂纹加速扩展运动而产生

    dict.cnki.net

  • During the refracturing process, monitoring fracture propagation is important to ensure the success of the job.

    重复压裂过程中裂缝扩展动态监测保障作业能否成功关键

    www.oilsns.com

  • This method established the fracture propagation inversion model firstly, based on law of fracture propagation and extended finite element method, by using annealing simulation method.

    首先基于裂缝扩展规律采用扩展有限元方法利用模拟退火技术,建立裂缝扩展反演模拟模型

    www.xml-data.org

  • Numerical Simulation of the multiple radial fracture propagation during the high energy gas fracturing is significant in the study of mechanism.

    数值模拟高能气体压裂径向裂缝延伸机理研究重要内容。

    www.dictall.com

  • In the paper, on the basis of two rupture modes-fracture propagation and shearing slide, the strength of jointed rock is derived by use of statistical fracture mechanics.

    本文基于岩体节理断裂扩展剪切滑移两种失稳破坏机制,运用统计断裂力学方法建立了破坏方式下节理岩体强度理论表达式

    www.chemyq.com

  • The average fracture propagation velocity is estimated with a series of crack gauges glued on the specimen.

    裂纹传播平均速度黏接试样一系列裂缝计测量得到

    www.rockmech.org

  • The causes of arisen crakes and fracture propagation are studied in this article. It also sums up the new technology at home and abroad and evaluates the measures of protecting the arch dam body.

    分析拱坝坝体裂缝产生原因对目前国内外预防处理拱坝裂缝措施技术进行较全面总结评价

    www.fabiao.net

  • The results show that hydraulic fracture propagation is not only related to the orientation of borehole in the stress field, but the magnitude of principal stresses.

    通过研究发现水力裂缝方位不但井筒现场应力场中的方位有关而且应力大小也会影响到裂缝延伸情况

    202.127.156.16

  • It is the initial damage, damage evolution and propagation fracture that result in various failure of jointed rock mass.

    正是由于这些节理裂隙初始损伤损伤演化扩展断裂等缺陷导致岩体产生了各种形式破坏

    dict.cnki.net

  • There is better linear relationship among the fracture spacing, propagation and height.

    裂缝间距延伸长度高度等参数之间具有较好的线性关系

    dict.cnki.net

  • The fracture distribution rule in the cement sample abaft blast wave by-passing is observed, and blast wave spreading process and the fracture initiation & propagation mechanism are analyzed.

    观测到了激波掠过后水泥试样裂纹形貌分布规律分析了激波水泥试样中的传播过程裂纹起裂扩展机理

    www.361xs.com

  • From the view point of material selection, we analyzed their dynamic fracture toughness and crack propagation resistance.

    选材角度对比分析了几种铝合金的动态断裂韧性裂纹扩展阻力

    dict.cnki.net

  • This paper is devoted to the problems concerning the propagation and fracture of the cracks on the welds of the tubes under the random load conditions.

    本文研究随机载荷作用下,管状件焊接部位裂纹扩展断裂问题

    www.dictall.com

  • Fracture mechanism, initiation and propagation of cracks, and the control method of cracks in rock like brittle material under dynamic load are described in this paper.

    本文主要论述了荷载作用岩石脆性材料断裂破坏机理裂纹形成扩展以及裂纹控制等内容。

    dict.cnki.net

  • By maximum tension theory and maximum strain energy density theory in fracture mechanics, created and propagation direction of new artificial fracture are analysized.

    分别应用断裂力学中的最大拉应力理论应变密度因子理论分析了重复压裂中水力裂缝初始扩展延伸方向

    dict.cnki.net

  • A simulation experiment using the fracturing of two-dimensional brittle glass plates is designed to study the propagation process of fracture in a brittle medium.

    设计了一个二维脆性玻璃板破裂模拟实验研究脆性介质破裂传播过程

    www.geophy.cn

  • The fatigue fractography consists of several different zones, including fatigue crack initiation, slow, fast propagation and final fracture.

    疲劳断口上存在典型疲劳裂纹萌生缓慢扩展快速扩展最后

    dict.cnki.net

  • It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.

    结果表明模型很好预测延性金属材料自裂纹萌生扩展直至完全断裂全过程

    jam.biam.ac.cn

  • To analyze the characteristics of TBCs such as residual stress, bond strength, fracture toughness, and crack propagation ratio, the Young's modulus and Poisson's ratio are important parameters.

    确定热障涂层残余应力、结合力、断裂韧性疲劳裂纹扩展速率性能特性,需要知道其杨氏模量

    dict.cnki.net

  • Brittle fracture. Fracture that occurs by rapid crack propagation and without appreciable macroscopic deformation.

    通过快速裂纹扩展发生断裂没有明显宏观变形

    dmse.jlu.edu.cn

  • Intergranular fracture. Fracture of polycrystalline materials by crack propagation along grain boundaries.

    多晶材料裂纹沿着晶界扩展断裂

    dmse.jlu.edu.cn

  • The critical event for cleavage fracture in notched specimens is the propagation of a ferrite grain-sized crack into the matrix, and is independent of specimen sizes and widths.

    缺口试样解理断裂临界事件铁素体晶粒尺寸裂纹扩展进入基体,不随试样尺寸宽度变化

    dict.cnki.net

  • Transgranular fracture. Fracture of polycrystalline materials by crack propagation through the grains.

    多晶材料裂纹穿过晶粒扩展而断裂

    dmse.jlu.edu.cn

  • The main course of fatigue fracture is due to existence of the inclusion in the material. The inclusion induce crack initiation, the crack propagation and the axe fracture in the circle stress.

    疲劳断裂主要原因材料存在夹杂诱发裂纹源,循环应力作用下裂纹扩展导致断裂

    www.chemyq.com

  • The equiaxed structure has good tensile property, low fracture toughness and high fatigue crack propagation rate.

    组织具有较好的拉伸性能断裂韧性疲劳裂纹扩展速率

    rjggy.net

  • The equiaxed structure has good tensile property, low fracture toughness and high fatigue crack propagation rate.

    组织具有较好的拉伸性能断裂韧性疲劳裂纹扩展速率

    rjggy.net

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