Therefore, the impact of starting pressure gradient must be considered when analyzing the productivity of vertical fracture well in low permeability reservoir.
因此，在进行低渗透油藏垂直裂缝井产能分析时，必须考虑启动压力梯度的影响。
The compacting density, bending strength, fracture toughness and rigidity value of the synthesis can be prepared to be applicable gradient material structure under suitable pressure and temperature.
在适当的压力、温度环境下合成致密度、弯曲强度、断裂韧性、硬度值可满足实际应用背景的梯度夹层。
Main fracture occurs in the high gradient area where the strain and gradient are relatively lower.
主破裂发生在应变及其梯度相对都较低的一个高应变梯度区。
The multilayer structure is also unlikely to distort and fracture by minimizing the temperature gradient in the cell.
另外，由于电池内的温度梯度的最小化，所述多层结构也 不太可能变形和破裂。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
针对低渗透地层垂直裂缝井的渗流过程，考虑了启动压力梯度和介质变形系数的影响，建立了三线流模型。
The present conclusion agrees with some previous experiments. The gradient plastic theory can approximately describe the phenomenon of the same fracture spacing.
这一结论不仅与一些文献结果相吻合，而且说明用梯度塑性理论能够近似描述等间距现象。
In this article, the fracture analysis on mode I crack of orthotropic functionally gradient materials is studied, under which the elastic constants changed exponentially along thickness of the plate.
文章对含i型裂纹的正交各向异性功能梯度材料板沿其板厚的弹性常数表达式呈指数函数变化时的应力-应变场进行分析。
The expression of fracture toughness at any point within the gradient composites was derived.
根据所得到的KIC表达式，调整材料配方设计并制备出所需要的KIC梯度复合材料。
The expression of fracture toughness at any point within the gradient composites was derived.
根据所得到的KIC表达式，调整材料配方设计并制备出所需要的KIC梯度复合材料。
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