铝合金2A12在热冲击条件下的力学性能

吴大方; 宋昊; 高镇同; 晏震乾

铝合金2A12在热冲击条件下的力学性能

1.
北京航空航天大学航空科学与工程学院, 北京 100083
2. 中国一航北京长城计量测试技术研究所[KG*2]国防科技重点实验室, 北京 100095

详细信息

作者简介:
吴大方(1950-),男,湖南长沙人,教授,wdf1950@163.com.

中图分类号: V 216.4; V 416.4
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- 被引次数: 0
出版历程
- 收稿日期: 2006-06-28
- 网络出版日期: 2007-05-31

Mechanical properties of 2A12 Al alloy at transient heating

1.
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
2. National Laboratory Metrology and Calibration of Changcheng Institute of Metrology & Measurement, Beijing 100095, China

摘要

摘要: 测试并确定航空航天材料在复杂高速热冲击条件下的强度极限等关键参数,对于航空航天材料和结构的可靠性评定、寿命预测以及高速飞行器的安全设计具有重要的意义.针对强度设计手册中没有航空航天材料在高速热冲击环境下的强度极限等表征参数的现状,使用自行研制的高速飞行器瞬态气动热试验模拟系统,对铝合金材料2A12在多种不同的瞬态热冲击条件下,进行气动加热模拟与热载联合试验研究,得到在瞬态热、力学环境的共同作用下铝合金2A12材料的强度极限等力学性能变化状况.为研究分析航空航天材料和结构在高速热冲击环境下的承载能力和结构减重提供可靠依据.
- 气动加热 /
- 瞬态 /
- 铝合金 /
- 热特性
Abstract: Testing and determining the pivotal parameters such as ultimate strength and thermal stress at the complicated condition of transients heating is very important to the reliability estimate, life prediction of aerospace materials and security design of the high-speed flight vehicle. Because there are no ultimate strength and other important token parameters at high temperature transients heating environment in the intensity design handbook yet, the high temperature ultimate strength and other mechanical properties of 2A12 Al alloy under different transient heating temperature and load environments was obtained by using experimental simulation system of the transients aerodynamic heating for high-speed flight vehicle. Reliable basis was provided for studying the loading capacity and weight lightened of aerospace materials and structure at transient heating environment.
- aerodynamic heating /
- transients /
- aluminum alloys /
- thermal properties

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参考文献(1)

[1] 《中国航空材料手册》编辑委员会.中国航空材料手册[M].北京:中国标准出版社,2001 《China aeronautical materials handbook》 Redaction Committee. China aeronautical materials handbook[M]. Beijing:China Standard Press, 2001(in Chinese) [2] 王国韬,谢惠民,戴福隆,等.大电流快速加热条件下LY12铝板动态变形的云纹干涉法实验研究[J].实验力学,1997,12(3):449-456 Wang Guotao, Xie Huimin, Dai Fulong, et al. Experimental study on the dynamic deformation of LY12 aluminum plate heated by strong current with moiré interferometry[J]. Journal of Experimental Mechanics,1997,12(3):449-456(in Chinese) [3] 杨运民,彭向和,陈裕泽,等.温升率对LY12铝合金拉伸响应特性的影响[J].金属学报,2000,36(9):926-930 Yang Yunmin, Peng Xianghe, Chen Yuze, et al. Effect of heating speed on mechanical properties of LY12 aluminum alloys[J]. Acta Metallurgica Sinica,2000,36(9):926-930(in Chinese) [4] 韩铭宝,刘宗德,刘怡光.热冲击下A3钢力学性能的研究[J].爆炸与冲击,1999,19(1):20-26 Han Mingbao, Liu Zongde, Liu Yiguang. An experimental study on the mechanical behavior of A3 steel under rapid heating[J]. Explosion and Shock Waves,1999,19(1):20-26(in Chinese) [5] 谭云,余勇,潘晓霞,等.高温热冲击对J75不锈钢力学性能及微观组织的影响[J].金属学报,2002,38(7):684-688 Tan Yun, Yu Yong, Pan Xiaoxia, et al. Effect of high temperature thermal shocking on the mechanical property and microstructure of stainless steel J75[J]. Acta Metallurgica Sinica,2002, 38(7):684~688(in Chinese) [6] 吴大方,房元鹏,张敏.高速飞行器瞬态气动热试验模拟系统[J].航空计测技术,2003,23(1):9-11,14 Wu Dafang, Fang Yuanpeng, Zhang Min. Experimental simulation system of transient aerodynamic heating for high-speed flight vehicle[J]. Aviation Metrology & Measurement Technology, 2003,23(1):9-11,14(in Chinese)

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