| 岩芯筒压入地层的塑性力学问题 |
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| 引用本文： | 王启玮.岩芯筒压入地层的塑性力学问题[J].西安石油大学学报(自然科学版),1992(2). |
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| 作者姓名： | 王启玮 |
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| 作者单位： | 西安石油学院石油机械系 |
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| 摘 要： | 摘要首先从库仑定律出发导出了地层介质塑性流动条件。其结果类似于一般塑性力学中的Tresca,Mises条件。其次列出了轴对称地层塑性流动的微分方程组,并推出了其简化近似方程。最后提出了简化方程的特征线解法,并举例说明。
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| 关 键 词： | 岩芯筒 塑性力学 地层介质 微分方程 塑性流动条件 特征线性 |
The Plastic Mechanics Problems of the Formation with the Core Barrel Pressed in |
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| Wang Qiwei.The Plastic Mechanics Problems of the Formation with the Core Barrel Pressed in[J].Journal of Xian Shiyou University,1992(2). |
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| Authors: | Wang Qiwei |
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| Institution: | Dept. of Petroleum Mechanical Engineering |
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| Abstract: | The plastic flowing conditions of formation medium are derived from Coulomb's Low. The results are similar to Tresca &. Mises platic condition. A set of differential equations for plastic flowing medinm in axisymmetric formation are given out. Simplified approximate equations are derived. The characteristic line method for solving the approximated equations is presented and described with an example. |
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| Keywords: | terms: core barrel plastic mechanics formation medinm differential eqnation plastic flowing condition characteristic line |
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