| 燃气轮机叶轮在循环载荷下的弹-粘-塑性有限元法计算 |
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| 引用本文： | 童云生.燃气轮机叶轮在循环载荷下的弹-粘-塑性有限元法计算[J].西安交通大学学报,1986(2). |
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| 作者姓名： | 童云生 |
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| 作者单位： | 西安交通大学工程力学系 |
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| 摘 要： | 本文提供了使用J.L.CHABOCHE提出的能描述金属循环载荷特性的粘塑性本构方程来计算燃气轮机轮盘的应力场及应变场的有限元法。该方程可计及象非线性硬化、鲍氏效应等复杂现象。而应力场及应变场的计算对寿命预测是很重要的。
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| 关 键 词： | 燃气轮机 疲劳寿命估算 粘塑性 有限元法 |
THE CYCLIC ELASTO/VISCOPLASTIC FINITE ELEMENT METHOD OF A GAS TURBINE DISK |
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| Tong Yunsheng.THE CYCLIC ELASTO/VISCOPLASTIC FINITE ELEMENT METHOD OF A GAS TURBINE DISK[J].Journal of Xi'an Jiaotong University,1986(2). |
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| Authors: | Tong Yunsheng |
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| Institution: | Tong Yunsheng Department of Mechanics |
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| Abstract: | The purpose of ibis paaper is to show a scheme for calculating the strain andstress fields of a gas turbine disk with the cyclic viscoplastic constitutive equationproposed by J. L. Chaboche for describing the cyclic behaviour of metals. Thisequation is capable of accounting for such complex phenomena as nonlinearhardening and Baushinger effect. The knowledge of the strain amd stress fields isimportant for the life prediction of gas turbine disks. |
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| Keywords: | Gas Turbines Estimation of Fatigue Life Viscoplasticity Finite Element Methods |
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