最小应力值是水力压裂最重要的参数之一。
The value of the minimum stress is one of the most important parameters in hydraulic fracturing.
最大应力和最小应力或二者之一和平均应力，以确定其起伏程度。
Either the maximum and minimum stresses of one of these and the mean stress-are required to specify the fluctuation.
试样内部各部位的应力大小分布不均匀，随应变速率的增大，最小应力值由自由变形的鼓形区域逐步向心部移动；
The effective stress of specimen is inhomogeneous. As the strain rate increases, the minimum stress value moves from the drum-shaped region to the heart of specimen.
为了尽量减小这种效应产生的电流，重要之点在于消除绝缘子上的机械应力并使用压电效应和储存电荷效应最小的绝缘材料。
To minimize the current due to this effect, it's important to remove mechanical stresses from the insulator and use insulating materials with minimal piezoelectric and stored charge effects.
莫尔-库仑模式基于莫尔圆来判断最大和最小主应力平面上的破坏应力状态。
The Mohr-Coulomb model is based on plotting Mohr's circle for states of stress at failure in the plane of the maximum and minimum principal stresses.
对于预应力筋，提供的锚固的保护层最小厚度必须与相关欧洲技术认可中的规定一致。
For prestressing tendons, the minimum cover of the anchorage should be provided in accordance with the appropriate European Technical Approval.
提出了前兆应力波扩展与传播的最小阻力或最短波径定律以及地应力波传播的概略模型。
The law of least resistance or shortest path of spread of stress wave as well as general propagation model of stress wave are given.
提出了一种利用测井资料计算最小和最大水平应力剖面的新方法。
Proposed is a new method to calculate the maximum and minimum horizontal stress using log data.
研究了应力约束下最小重量悬臂梁桁架结构的拓扑优化设计。
Topology optimization design of minimum weight cantilever trusses subjected to stress constraints is studied.
在泥岩段水平最大与最小主应力基本相等或相差甚小，在砂岩段才呈现较大差异。
Horizontal maximum and minimum principal stresses are nearly equal in shale formation, and very different in sand formation.
在多层焊的过程中，采用对称施焊的方法得到的焊接残余拉应力峰值是最小的。
In the multilayer welding process, the method of symmetry welding gets the minimum residual tensile stress.
依据最大、最小主压应力大小和方向，为油田注采开发等提供合理化方案。
Reasonable program for field pumping and rejecting development is put forward according to magnitudes and orientations of the maximum and minimum principal stresses.
对于加筋板中筋的侧倾失稳，则通过能量法推导加强筋侧倾失稳时的总势能泛函，利用最小势能原理求解出此失稳模式下的临界应力。
In the analysis of the elastic tripping of the stiffener, the critical stress under this mode of failure is derived by using the energy method and the principle of least potential energy.
再结合最小主应力原理，确定重复压裂裂缝方位。
Integrating the minimum principal stress principle, the re-fracturing crack azimuth is determined.
通过对板料弯曲变形应力应变分析，提出了几种近似计算最小相对弯曲半径的方法。
A few methods, which approximately calculate minimum relative bending radius, are put forward by analyzing the stress and strain as plate bending deformation in this paper.
该条件表示转鼓在工作时弹性工作范围最大，它是最大合成工作应力最小原则的一个推广。
This principle, which is an extension of the principle that the maximum synthetic working stress is minimum, shows that the elastic working range of the bowl is maximum.
我们已能够通过比较经历过常规应力解除芯片来确认被改进芯片强度的平均、最小、最大值。
We have been able to confirm that average, minimum and maximum values for die strength could be improved compared with die that underwent the conventional stress relief.
优化的目标函数是最大应力最小，设计变量是圆角附近设计单元控制节点的坐标。
Maximum stress ACTS as objective function. Coordinates of control nodes of design elements near the fillet are regarded as design variables.
根据GB150—1998钢制压力容器中整体法兰中的应力校核原则，采用优化设计方法中拉格朗日乘子法，进行最小质量的优化计算。
According to the stress check criteria of the integral flange stipulated in GB150-1998 steel pressure vessels, optimum design of the integral flange is made by Lagrangian method.
在螺纹材料、尺寸、载荷都相同的情况下，三角形螺纹牙所受的剪应力最小，断裂载荷也比梯形螺纹和矩形螺纹高。
In the same material, dimension and load circumstance, the cut stress of the triangle thread is smallest. Its rupture load is higher than the echelon and rectangle.
运用最小余能原理，求得了双层复合材料杆温度应力的封闭解。
By the use of the variational principle of complementary energy, the closed form of the stresses of double-layer composite bar is obtained.
应力改变触发地震的机制，主要是由于最小水平主应力的减小，或两个水平主应力同时减小。
Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.
取得了该区最大水平主应力、最小水平主应力量值及最大水平主应力方向。
The maximum and the minimum horizontal stresses and the direction of the maximum horizontal stress are obtained.
最后基于该方法计算的应力场，应用并行组合模拟退火算法搜索坝基最危险滑动模式及相应的最小安全系数。
Finally, based on the stress fields of FEM analysis, the most dangerous sliding mode and the minimum anti-sliding factor are searched by parallel recombination simulated annealing algorithm.
将移动最小二乘无网格方法和弹性偶应力理论结合在一起，建立弹性偶应力理论的移动最小二乘无网格方法离散模型。
The moving least square meshless method and the couple stress theory were combined together. Discrete model of moving least square meshless method was derived based on couple stress theory.
人工裂隙的方向受地应力场中两个相互垂直的主应力分量—最大主应力和最小主应力的制约。
The orientation of the induced hydrofractures arc controlled by the mutually perpendicular orientations of the maximum and minimum principal stress components of in situ stress field.
回波时间最长的方向为最小地应力方向，最大地应力方向与之垂直。
The direction of longest echo time is the direction of minimum earth stress, and the direction of greatest earth stress is perpendicular to it.
回波时间最长的方向为最小地应力方向，最大地应力方向与之垂直。
The direction of longest echo time is the direction of minimum earth stress, and the direction of greatest earth stress is perpendicular to it.
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