说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。 您的位置：首页 -> 词典 -> 裂缝起裂准则 1)  Crack initial cracking criterion 裂缝起裂准则 2)  Initial cracking criterion 起裂准则 3)  fracture initiation 裂缝起裂 1. Model of fracture initiation of the refracturing deep wells 深井重复压裂裂缝起裂模型 2. The fracture initiation of fractured ERW differ from those of the vertical and the conventional directional wells, the initiation mode is not only relative to the well trajectory (deviation and azimuth angle) but also the in-situ stress azimuth. 大位移井水力压裂裂缝起裂与直井、普通定向井有显著差别 ,其起裂模式不仅与井眼轨迹 (井斜角、方位角等 )有关 ,而且还与地应力方位密切相关。 3. The mathematical model of the fracture initiation pressure is established,and according to the solution of the model,the conclusions can be drawn that if wellbore azimuth angle is different,the effects of vertical principal stress and minimum horizont. 水平井压裂可以有效提高低渗透油气藏水平井的采油速度和最终采收率,裂缝起裂和裂缝延伸规律是水平井压裂的关键问题之一。 4)  fracture breakdown 裂缝起裂 1. Mechanism of hydraulically created fracture breakdown and propagation based on fractal method; 基于分形方法的水力压裂裂缝起裂扩展机理 5)  crack propagation criterion 裂缝扩展准则 1. Mode Ⅰ crack propagation criterion of concrete and numerical simulation on complete process of cracking; 混凝土Ⅰ型裂缝扩展准则及裂缝扩展全过程的数值模拟 2. The main work of this paper are as follows:1、By utilizing I-II mixed mode Crack Propagation Criterion of concrete,2D arbitrarily crack propagation comes true by using APDL(ANSYS parameter design language). 论文开展了以下几方面的工作:1、采用混凝土Ⅰ-Ⅱ复合型裂缝扩展准则,利用ANSYS的apdl二次开发语言实现了二维状况下任意方向的裂缝扩展。 6)  crack limit rule 裂缝限值准则 补充资料：裂裂 1.象声词。 说明：补充资料仅用于学习参考，请勿用于其它任何用途。 参考词条 ©2011 dictall.com