采用光学显微技术对高聚物蠕变条件下的银纹损伤引发和演化进行了实验观测。
An optical technique to quantify the creep crazing damage in stressed transparent glassy polymeric sheet of PMMA is presented.
积分在短时蠕变和长时间蠕变条件下是路往无关的，而在过渡蠕变时期，其与路径也只是弱相关。
The J integral is path-independent for the short time creep and long one, while in the transition period, it is weakly path-dependent.
最后给出塔里木油田英买力地区第三系盐层在均匀和非均匀地应力条件下盐岩蠕变引起的套管岩压外载实例。
Finally, the examples of external load due to the salt creep in the tertiary of Yingmaili oil field have been performed under heterogeneous and homogeneous in-situ stresses.
由该图可以看出，绝大多数试验点落在线性累积损伤线上侧，表明在本文试验条件下，P91钢母材和焊材蠕变疲劳交互作用均表现为负交互作用。
From the curves we can see that most of the experiment results are above the linear cumulative damage curve, it indicates that the steel P91 is negative interaction under the condition of this thesis.
本文着重介绍了在中下地壳温度、压力条件下进行的几种岩石半脆性蠕变的实验研究结果。
This paper deals with some results of experimental study on semi-brittle behavior of rocks at the conditions relevant to the middle-lower crust.
由于材料性质以及操作条件的随机性，高温构件的蠕变损伤也同样具有随机性。
Because of the randomness of material properties and operation conditions the creep damage of high temperature component is also stochastic.
根据统一蠕变模型和该模型导出的蠕变方程，研究了分级加载条件下的岩石蠕变特性，并且通过曲线拟合得出了相应的蠕变参数。
Based on the unified creep model and the relevant creep equations, the creep properties of rock under step load is studied, and the corresponding creep parameters by fitting curves are obtained.
在三轴蠕变状态，软土的变形特性随着排水条件而变化，从而揭示了固结—蠕变耦合特性受排水条件的影响显著。
In triaxial creep condition, deformation characteristics change with drainage condition, which indicates that the consolidation-creep coupling effect is affected significantly by drainage condition.
在注水条件下，泥岩蠕变引起层间滑移是套管损坏的主要原因。
With water_injection, creep and gliding of a mud_rock layer are main reasons for casing failure.
本文通过试验，对航空涡轮盘用材料GH169合金的蠕变— 疲劳交互作用行为进行了研究。结果表明，在本文试验条件下，GH169合金的蠕变—疲劳交互作用对寿命有利。
The property of GH169 alloy steel in condition of creep-fatigue interaction is studied. The result shows that the creep-fatigue interaction is beneficial to service life.
本文介绍了岩石蠕变试验所必需的试验条件、试验方法和试验设备。
The necessary test conditions, testing methods & equipment for creep test of rock specimens are described in this paper.
通过规则齿形结构面在双轴应力条件下的蠕变试验，对规则齿形结构面剪切蠕变特性进行了深入的研究，分析了规则齿形结构面蠕变的基本规律。
Testing study is made on the creep characteristic of regularly dentate discontinuity in the condition of two-axial stresses, and the normal creep rule of regularly dentate discontinuity is analyzed.
根据不同载荷条件下土体蠕变破坏的时间数据列，建立了土体流变破坏时间的灰色预测模型。
According to the sequence of the soil creeping failure time under different loading conditions, a grey forecasting model for the failure time in the course of soil creeping is established.
四川地区三迭系盐岩层分布广泛，盐岩层蠕变挤毁套管的客观条件是存在的。
Distribution of Triassic salt bed is very wide in Sichuan Area and the condition of salt rock creep resulting in casing collapse is existing.
经过对螺栓的服役条件以及工作中受力情况进行分析，认为螺栓断裂主要是由于长时间在高温条件下发生蠕变导致的。
Work condition and force acting of the bolt were analyzed. The bolt failure was creep fracture mainly due to their high temperature work condition.
利用自行改装后的三轴蠕变仪对海相沉积的营口软土进行蠕变试验，获得了在不同围压、不同偏应力条件下的剪切应变与时间关系数据。
The relationship between shear strain and time of Yingkou soft soil is obtained under a series of different cell pressures and different deviator stresses.
流变性质是岩石材料的重要力学特性，以紫色泥岩为例，在分级加载条件下研究了其三轴蠕变特性。
Rheological properties is an important mechanical properties of rock material. Triaxial creep properties of specimen made of purple mudstone were studied under stepwise loading.
流变性质是岩石材料的重要力学特性，以紫色泥岩为例，在分级加载条件下研究其三轴蠕变特性。
Rheological properties is an important mechanical properties of rock material, triaxial creep properties are studied using specimens made of purple mudstone under stepwise loading.
在相同偏应力条件下，不排水常规三轴压缩蠕变的应变值要小于减压三轴压缩蠕变的应变值；
The value of strain of undrained conventional triaxial compression creep is less than that of reduced triaxial compression creep under the same deviator stress;
其次，采用有限元方法，研究了非均匀地应力条件下蠕变地层中套管的载荷。
Secondly, due to the difficulty of the analytical method in treating non-uniform in-situ stresses, finite element method is used instead.
采用受约束蠕变孔洞生长模型计算了不同试验条件下t 91钢的蠕变断裂时间，计算值与实测值相差不到2倍。
Results show that the ratio of calculated time to measured value is less than 2. After the modification of constrained cavity growth model, the calculated rupture time further appr...
采用受约束蠕变孔洞生长模型计算了不同试验条件下t 91钢的蠕变断裂时间，计算值与实测值相差不到2倍。
Results show that the ratio of calculated time to measured value is less than 2. After the modification of constrained cavity growth model, the calculated rupture time further appr...
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