| 高温蠕变分析的非线性连续损伤力学模型 |
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| 引用本文： | 荆建平,夏松波,孙毅,冯国泰.高温蠕变分析的非线性连续损伤力学模型[J].推进技术,2001,22(2):139-142. |
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| 作者姓名： | 荆建平 夏松波 孙毅 冯国泰 |
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| 作者单位： | 1. 哈尔滨工业大学能源科学与工程学院,
2. 哈尔滨工业大学航天工程与力学系, |
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| 基金项目： | 国家重点基础研究专项经费资助项目! (G19980 2 0 32 1) |
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| 摘 要： | 采用非线性连续损伤力学模型对某发动机涡轮轮盘在典型任务工况下的蠕变损伤和寿命进行,工同当前普遍使用的累积损伤理论进行比较，指出了累积损伤理论存在的问题。分析结果表明，连续损伤模型能更合理地描述材料蠕变损伤的累积发展过程。
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| 关 键 词： | 航空发动机 涡轮盘 损伤力学 高温蠕变分析 |
| 文章编号： | 1001-4055（2001）02-0139-04 |
| 修稿时间： | 2000年7月3日 |
Nonlinear continuum damage mechanics model on high temperature creep analysis |
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| Jing Jian-ping,Xia Song-bo,Sun Yi and Feng Guo-tai.Nonlinear continuum damage mechanics model on high temperature creep analysis[J].Journal of Propulsion Technology,2001,22(2):139-142. |
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| Authors: | Jing Jian-ping Xia Song-bo Sun Yi and Feng Guo-tai |
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| Institution: | JING Jian-ping 1,XIA Song-bo 1,SUN Yi 2,FENG Guo-tai 1 |
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| Abstract: | A nonlinear Continuum Damage Mechanics model was employed to analyze the creep life and damage of a gas turbine disc of a engine under typical flight, then, the results were compared with those from present linear damage cumulating theory . The results prove that Continuum Damage Mechanics model can describe the cumulation and development of damage more accurately. |
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| Keywords: | Aircraft engine Turbine wheel Creep Injury |
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