When the crack is close to the interface, the crack driving force in harder medium will increase and that in softer medium will decrease.
当裂纹靠近界面时，较硬介质中裂纹驱动力将增大，而较软介质中裂纹驱动力将减小。
The results show that when the annular crack is away from the interface, the normalized stress intensity factors at the crack tips decrease with increasing time.
结果表明，给定长度的环形裂纹在尚未接触界面时，其两端正则化的型和型应力强度因子均随时间增大而减小。
The relative equation between stress intensity factor and displacement field near interface crack tip of bimaterials was derived firstly.
首先推导了双材料界面裂纹尖端的位移场和应力强度因子之间的关系式。
On top of that, this method is used to calculate the stress intensity factors of interface crack at the heel of gravity dam, and some useful conclusions are presented.
作为应用，文中计算了坝踵界面裂缝的应力强度因子，得出了应力强度因子随坝基弹模、库水位和缝水压力的变化规律。
The elastic interaction between a screw dislocation dipole and a mode III interface crack is investigated.
研究了多晶体材料中螺型位错偶极子和界面裂纹的弹性干涉作用。
The elastostatic field near the interface crack tip between two incompressible materials is analyzed with the fully nonlinear theory.
采用完全非线性弹性理论，研究了两类不可压缩材料形成的界面裂纹尖端场。
In the view of the concrete's minute construction, cement and mortar encircled bone, there is tiny crack on interface of bone and mortar under temperature load.
从混凝土组成的细观角度出发，研究水泥砂浆包围的骨料，在温度荷载作用下首先在骨料与砂浆的界面上产生界面微裂缝。
This paper investigates the problem of the elastic interaction between a screw dislocation dipole and a circular interface crack.
该文研究了螺型位错偶极子和圆形夹杂界面裂纹的弹性干涉作用。
The problem of a cylindrical interface crack is reduced to a system of singular integral equations with the aid of two unknown dislocation functions at the interface crack surface.
以裂纹面上的位错函数为未知量将圆柱型界面裂纹问题化成一组奇异积分方程的求解问题。
The results showed that the forming of crack was mostly made by the interface defect between overlaying welding layer and matrix.
结果表明，堆焊层与基体的界面缺陷是裂纹形成的主要原因。
The fracture way and the crack propagating orientation will be changed by the influence of many factors when the crack grows through the bonding interface.
受多种因素影响，裂纹穿过层间界面时，会引起断裂方式和扩展方向的改变。
The condensation method for the analysis of viscoelastic interface crack with similar shape element is put forward.
提出了粘弹性界面裂纹分析的相似界面单元聚缩解法。
The results showed that the weak interface can block the motion of the dislocations and change the propagation direction of the main crack, and result in forming lamella fracture surface.
结果表明，弱界面有阻碍位错运动、偏转主裂纹扩展方向的作用，可形成分层断口。
The results showed that the weak interface can block the motion of the dislocations and change the propagation direction of the main crack, and result in forming lamella fracture surface.
结果表明，弱界面有阻碍位错运动、转主裂纹扩展方向的作用，可形成分层断口。
A simulation method of molecular dynamics is introduced to simulate the interface crack initiation, from which the correlations between the interface stress and the interface fracture are acquired.
采用分子动力学模拟方法，可以对结合材料的界面起裂过程进行模拟，从而获得结合材料界面应力和界面破坏之间的关系。
Then single aggregate concrete specimens is established, the influence of interface strength to the macro-strength is discussed, while the shape of aggregate on the crack extension is investigated.
建立单颗骨料混凝土试件，探讨界面强度对混凝土宏观强度的影响，同时探讨骨料形状对裂纹扩展的影响。
Investigation indicated that plastic flow characteristic is not obvious at the interface between ASBs and matrix, which observed long crack in lamellar microstructure.
片层组织绝热剪切带与基体的界面塑性流变特征不明显，并且在该区域观察到了呈快速扩展特征的长裂纹。
Scattering of elastic waves by an interface crack with adhesive contact near its tips is considered in this paper.
本文研究一类粘着型界面裂纹模型的弹性波散射问题。
Based on status in quo of the interface crack propagation of the isotropic bi - material, the exiting problems and the tendency of the research are proposed.
在对各向同性双材料界面裂纹扩展研究现状进行综述的基础上，提出了目前研究存在的问题以及今后的研究趋势。
The interaction among a screw dislocation, circular inclusion and interface crack or elliptical inclusion and interface crack under remote uniform heat flux is mainly researched in this paper.
运用共形映照、解析延拓以及柯西型积分运算等复变函数方法研究无限大平面中楔型向错偶极子与界面裂纹、圆形夹杂的弹性干涉问题。
The problem of an anti plane Griffith crack moving along the interface of dissimilar piezoelectric materials is solved by using the integral transform technique.
利用积分变换技术，得到不同压电介质界面上的反平面运动裂纹问题的分析解。
The crack driving force in the bi-material is analyzed and the variations of J-integral with the bi-material parameters and the distance between crack and interface are studied in this thesis.
本研究对双相介质材料中的裂纹驱动力参量进行分析，研究J积分随双相界质材料特性的差异和裂纹到界面距离的变化规律。
For CH joint, when the initial crack is located in hard zone, the closer the initial crack is to the hard soft interface, the slower the fatigue crack growth rate is.
起始裂纹在硬区的软对硬力学性能非对称焊接接头，起始裂纹越靠近软区，疲劳裂纹扩展速率越慢；
Analytical solution was given for rule of rock displacement and stress distributions and forming and developing of the crack in interface layer. A condition of earthquake occurring was...
分析了岩体的位移和应力分布规律，得到了层间裂纹产生及其扩展规律，建立了地震发生的条件，提出了一种预报地震的方法。
The thermal fatigue crack propagated mainly through the break-age of the interface of carbide and grain boundaries for either quenched or quenched and tempered steel.
无论是淬火或淬回火态的试样其热疲劳裂纹主要沿着碳化物与基体脱开处及晶界裂纹桥接而扩展。
Concrete at interface parts was easy to crack when casting time interval was long.
当浇筑时间间隔较长时，结合面部位混凝土极易开裂。
The debonding region is modeled as an arc-shaped interface crack and the interaction between crack surfaces is neglected.
将脱离区看作弧形裂纹并忽略裂纹表面的相互作用。
The reasonable shielding parameters for a sub-interface crack to an interface cr ack are investigated.
讨论了界面下裂纹对界面裂纹干涉的合理屏蔽参数问题。
The reasonable shielding parameters for a sub-interface crack to an interface cr ack are investigated.
讨论了界面下裂纹对界面裂纹干涉的合理屏蔽参数问题。
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