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| 单晶涡轮叶片材料本构模型及应用研究 | |
| 引用本文： | 杨治国,岳珠峰,尹泽勇,魏鹏义,成晓鸣.单晶涡轮叶片材料本构模型及应用研究[J].航空动力学报,2003,18(5):650-657. |
| 作者姓名： | 杨治国 岳珠峰 尹泽勇 魏鹏义 成晓鸣 |
| 作者单位： | 1. 南京航空航天大学,能源与动力工程学院,江苏,南京210016;株洲航空动力机械研究所,湖南,株洲412002 2. 西北工业大学,工程力学系,陕西,西安710072 3. 株洲航空动力机械研究所,湖南,株洲412002 4. 北京航空材料研究院,北京100095 |
| 基金项目： | 国家自然科学基金资助项目(50005016)，航空科学基金资助项目(02C53011)，长江学者奖励基金资助项目 |
| 摘 要： | 综述了各向异性单晶叶片强度分析和寿命预测方面的一些研究工作。这些工作包括:建立并验证了弹塑性、蠕变滑移本构模型及蠕变持久寿命预测方法;进行了不同晶体取向DD3单晶在不同温度、不同速率或不同温度、不同应力水平下的拉伸试验、蠕变、疲劳及热疲劳试验;开发了大型单晶结构有限元分析软件SLAPSC和ABAQUS的umat;用双剪切试样和模拟叶片等系列试验对模型和有限元进行考核。作为应用研究,对某发动机单晶涡轮叶片进行了强度分析和寿命预测。 |
| 关 键 词： | 航空、航天推进系统 镍基单晶合金 力学性能 模型 |
| 文章编号： | 1000-8055(2003)05-0650-08 |
| 收稿时间： | 2002/10/28 0:00:00 |
| 修稿时间： | 2002年10月28 |
Constitutive Relationship of Nickel-Base Single Crystal Superalloys and Applications |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Zhuzhou Aviation Powerplant Research Institute,Zhuzhou 412002,China;;Northwestern Polytechnical University,Xi'an 710072,China;Zhuzhou Aviation Powerplant Research Institute,Zhuzhou 412002,China;Beijing Aeromaterial Research Institute,Beijing 100095,China;Zhuzhou Aviation Powerplant Research Institute,Zhuzhou 412002,China |
| Abstract: | The work carried out in our research group in respect of the mechanic study of nickel base single crystal (SC) superalloys has been reviewed.The models for crystallographic elastoplastic behavior,creep,fatigue and thermomechanical fatigue and life predictive models have been presented and validated.Experiments have been performed for the mechanic behaviors of SC superalloys at different loading conditions for different crystallographic orientations and temperatures,thus the basic data for the validation of the models were acquired.Two ad hoc programs,SLAPSC and umat for ABAQUS,have been developed for the SC blades.The double shear creep specimens and modeling turbine blades have been experimented for the validation of the model.Finally,the SC turbine blades have been analyzed by the models for the strength and life. |
| Keywords: | aerospace propulsion system nickel-base single crystal superalloys mechanic behavior model |
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