| 厚壁筒循环蠕变问题的有限元法 |
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| 引用本文： | 贾红光.厚壁筒循环蠕变问题的有限元法[J].青海大学学报,1998,16(4):25-29,39. |
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| 作者姓名： | 贾红光 |
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| 作者单位： | 青海大学化工学院 西宁810016 |
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| 摘 要： | 对厚壁筒发生循环蠕变进行分析计算，推导出基于ＢＦＧＳ法的有限元计算式，采用ＡＤＩＮＡ计算程序，计算厚壁筒在循环蠕变下的等效应力。结果表明，ＢＦＧＳ法比Ｎ－Ｒ法有着更好的数值稳定性及收敛性。
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| 关 键 词： | 厚壁筒 蠕变 非线性 有限元 BFGS法 循环蠕变 |
The Finite Element Method for Circular Creep of Thick - Wall Cylinder |
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| Jia Hongguang.The Finite Element Method for Circular Creep of Thick - Wall Cylinder[J].Journal of Qinghai University(Natural Science),1998,16(4):25-29,39. |
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| Authors: | Jia Hongguang |
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| Abstract: | The paper analyses the problem on circular creep of thick - wall cylinder, and the recurrence formular of the nonlinear finite element method based on the BFGS method is given, Further more, adopting the ADINA program, the equivalent stress of the thick - wall cylinder is calculated out, which proves a better convergence and numerical stability of BFGS method than that of N - R method. |
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| Keywords: | Thick - wall cylinder Circular creep Nonlinear finite - element method BFGS method |
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