| 高压筒体的弹-塑性分析及其一万二千大气压自增强试验 |
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| 引用本文： | 吴绵拔.高压筒体的弹-塑性分析及其一万二千大气压自增强试验[J].岩土力学,1979,1(1):91-101. |
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| 作者姓名： | 吴绵拔 |
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| 作者单位： | 中国科学院武汉岩体土力学研究所高压筒体研究组 |
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| 摘 要： | 自从1911年卡门〔1〕做了第一个岩石三轴试验之后,国外很多学者相继进行这方面的工作.特别是近廿年来,随着核爆和地震等方面研究的发展,随着超高压容器和密封技术的发展,促使岩石三轴试验研究有大的发展.美国的G riggs〔2〕、Handin〔3〕和日本的Mogi〔4〕等人在这方面作了大量工作.目前,美国已采用刚性试验机和伺服控制系统〔5〕,从而达到岩石三轴试验自动化.
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| 关 键 词： | 塑性分析 高压容器 三轴试验 刚性试验 密封技术 核爆 弹塑性交界面 卡门 弹性区 伺服控制 |
The Elastoplastic Analysis of high pressure Cylinder and Autofrettage Test under 12 Kb |
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| Wu Mina-ba.The Elastoplastic Analysis of high pressure Cylinder and Autofrettage Test under 12 Kb[J].Rock and Soil Mechanics,1979,1(1):91-101. |
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| Authors: | Wu Mina-ba |
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| Institution: | lustitute of Rock and Soil Mechanics, Academia SinicaWuhau, china |
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| Abstract: | This paper systematically introduces the elastoplastic analysis and autofrettage method of the pressure nder .It describes in detail the 12,100kg/cm2 hydraulic autofrettage test of a cylinder with its outside diameter 240 mm ,inside diameter 40-82 mm, and the height 362 mm. A cross –hole with diameter 4 mm is drilled ,then 9，925 kg/cm2 cyclic hydraulic pressure is applied .The result of the test is an expectant success .The behavior of the cylinder is satisfactory in its later usage . Conclusions are made as follows: 1. Using the hydraulic autofrettage technique ,the ultimate fatigue strength of the triaxial chamber cylinder ,which has the changeable cross section and is made by the super strengthened steel 37SiMnCrNiMoV,can be increased . 2. The hydraulic autofrettage technique can improve stress concentration of the cross-bore of the high pressure vessels. |
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