并以前面所学的观念探讨颈缩及劈裂破坏。
Necking and cleavage cracking are discussed in terms of prior concepts.
无约束试件在达到最大粘结应力之后劈裂破坏，此时的滑移很小。
In unrestraint specimens, at the slip displacement was very small, the splitting failure of concrete was observed when the maximum bond stress was reached.
随着孔径分布控制参数的减小，圆盘劈裂破坏区域增大且更加分散。
The split failure region of disk model is larger with the smaller pore radii distribution parameters.
洞室发生岩爆后围岩总要留下破坏痕迹，岩爆往往造成劈裂破坏或剪切破坏。
After rockburst occurs in the tunnel, Some traces always reserve on the wall. Destructionsof rockburst are in the form of split or shear.
研究结果表明，在不同起始主应力比条件下，试件可以表现为水力劈裂破坏，也可以为剪切塑流破坏。
The experimental results show that the failure of specimens will be either hydraulic fracturing or shearing plastic flow, it depends on the initial principal stress ratio.
破断面观察结果显示，在室温中，氢气会导致平滑试片在表面形成裂纹，而在凹槽试片中产生劈裂破坏形态。
Fractographic observations showed that hydrogen could induce surface cracks for smooth specimens and a cleavage fracture pattern for notch specimens at RT.
结合有限元分析，得到了大理岩的动态劈裂破坏的拉伸强度。分析了巴西圆盘和平台巴西圆盘的典型破坏方式。
With finite element analysis, dynamic tensile strength for marble was obtained and typical failure modes of the Brazilian disc and the flattened Brazilian disc were analyzed.
本文分析了渗水力对中空圆柱试件应力场的影响，首次揭示了中空圆柱试件水力劈裂破坏的力学机理，试验值与理论分析值相互吻合。
The paper studies the effect of seepage force on the stress field of hollow cylinder of compacted cohesive soil revealing for the first time the mechanism of hydraulic fracturing test.
水力劈裂过程只有弹性变形和脆性破坏，不存在裂隙压裂过程中的第三种变形机理—压缩破坏。
There are only elastic deformation and brittle deformation on the process of hydraulic fracturing, and not compaction.
介绍我国应用能量原理研究岩石破坏机制及岩体水力劈裂机制的进展。
The advances of researching rock failure and hydraulic fracture mechanism by energy method are introduced.
通过对大理岩的标准岩石试件进行单轴压缩和巴西劈裂试验，探讨了不同加载方式对破坏后岩石碎块分布的影响。
Based on Brazilian Split test and uniaxial compressive test for standard marble samples, the influence of the loading form on the distribution of rock fragments is discussed.
最后进行了巴西圆盘劈裂CT扫描实验，分析了孔隙岩石破坏机理及其孔隙结构的变化。
A number of Brazil disc split-CT scanning tests are carried out to analyze the failure mechanism of porous rock and the changeable porous structure.
结果表明，外加磁场破坏量子点能级的自旋简并，使得电荷流和自旋流的共振峰劈裂开，得不到纯自旋流。
Numerical results show that the resonance peaks of spin current split and the pure spin current disappears due to the magnetic field destroying the degeneration of electron spin in quantum dot.
选用水泥砂浆作为试验材料，研究其在水力劈裂条件下的破坏特征。
Hollow columns were made with sand-cement grout as test samples, on which the failure characteristic was studied in the condition of tri axis hydraulic fracturing.
最终形成劈裂裂纹穿越孔隙，出现较宽的破坏裂纹。
The split cracks penetrate pores, and finally wider failure cracks appear.
低温下，随着油石比增大，沥青混合料劈裂强度和劲度模量增大，破坏应变减小；随着空隙率的增大，沥青混合料劈裂强度减小；
The results showed that at normal temperature the splitting strength of the asphalt mixture increases when the aggregate gradation becomes coarse;
低温下，随着油石比增大，沥青混合料劈裂强度和劲度模量增大，破坏应变减小；随着空隙率的增大，沥青混合料劈裂强度减小；
The results showed that at normal temperature the splitting strength of the asphalt mixture increases when the aggregate gradation becomes coarse;
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