时效不同时间铝镁硅合金型材的准静态轴向压缩性能
Quasi-static Axial Compressive Properties of Al-Mg-Si Alloy Profiles Aged for Different Times
摘 要
先将铝镁硅合金型材在180 ℃下分别进行30, 150, 540 min的时效处理, 然后采用WAW-E600型试验机对其进行准静态下的压缩试验, 研究其变形模式与吸能性能。结果表明: 随时效时间的延长, 铝镁硅合金型材的压缩变形模式由金刚石模式逐渐转变为手风琴模式, 时效540 min后型材的吸能性能较时效30 min的提高了78.1%。
时效
准静态压缩
变形模式
吸能性能
Al-Mg-Si alloy profile
aging
quasi-static compression
deformation mode
energy absorption
Abstract
The Al-Mg-Si profiles were aged at 180 ℃ for 30 min, 150 min and 540 min, respectively and then compressed with WAW-E600 test mechine in quasi-static state to study the deformation modes and energy absorption. The results show that the deformation mode of the Al-Mg-Si profiles changed from diamond mode to concertina mode with the increase of aging time. Comparing with the profile aged for 30 min, the energy absorption of the profile aged for 540 min was increased by 78.1%.
中图分类号 TB31
所属栏目 物理模拟与数值模拟
基金项目 高等学校博士学科点专项科研基金资助项目(20090161110027); 湖南省杰出青年基金资助项目(09JJ1007); 重庆市科技攻关计划项目(CSTC,2007AA4008); 湖南大学汽车车身先进设计制造国家重点实验室自主课题项目(61075005)
收稿日期 2011/9/29
修改稿日期 2012/6/19
网络出版日期
作者单位点击查看
备注王冠(1985-), 男, 河南郑州人, 博士研究生。
引用该论文: WANG Guan,XIANG Dong,LI Luo-xing. Quasi-static Axial Compressive Properties of Al-Mg-Si Alloy Profiles Aged for Different Times[J]. Materials for mechancial engineering, 2012, 36(10): 81～85
王冠,向东,李落星. 时效不同时间铝镁硅合金型材的准静态轴向压缩性能[J]. 机械工程材料, 2012, 36(10): 81～85
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参考文献
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【2】CHEN D H, USHIJIMA K. Estimation of the initial peak load for circular tubes subjected to axial impact[J].Thin-Walled Structures,2011,49(7):889-898.
【3】ALEXANDER J M. An approximate analysis of the collapse of thin cylindrical shells under axial loading[J].Q J Mech Appl Math, 1960,13(1):10-15.
【4】ABRAMOWICZ W, JONES N. Dynamic axial crushing of square tubes[J].International Journal of Impact Engineering,1984,2(2):179-208.
【5】ABRAMOWICZ W, JONES N. Dynamic axial crushing of circular tubes[J].International Journal of Impact Engineering,1984,2(3):263-281.
【6】LANGSETH M, HOPPERSTAD O S. Static and dynamic axial crushing of square thin-walled aluminum extrusions[J].International Journal of Impact Engineering,1966,18(7/8):949-968.
【7】LANGSETH M, HOPPERSTAD O S, HANSSEN A G. Crash behavior of thin-walled aluminum members[J].Thin-Walled Structures,1998,32(1/3):127-150.
【8】TVERGAARD V. On the transition from a diamond mode to an axisymmetric mode of collapse in cylindrical shells[J].International Journal of Solids and Structures,1983,19(10):845-856.
【9】CHEN W G, WIERZBICKI T. Relative merits of single-cell, multi-cell and foam-filled thin-walled structures in energy absorption[J].Thin-Walled Structures,2001,39(4):287-306.
【10】ZHANG Xiong, CHENG Geng-dong, ZHANG Hui. Theoretical prediction and numerical simulation of multi-cell square thin-walled structures[J].Thin-Walled Structures,2006,44(11):1185-1191.
【11】ZHANG Xiong, CHENG Geng-dong. A comparative study of energy absorption characteristics of foam-filled and multi-cell square columns[J].International Journal of Impact Engineering,2007,34(11):1739-1752.
【12】潘青林,李绍禄,邹景霞,等.微量Mn对Al-Mg-Si合金微观组织与拉伸性能的影响[J].中国有色金属学报,2002,12(5):972-976.
【13】ANDREWS K R F, ENGLAND G L, GHANI E. Classification of the axial collapse of cylindrical tubes under quasi-static loading[J].International Journal of Mechanical Sciences,1983,25(9/10):687-696.
【14】WIERZBICKI T, BHAT S U. A moving hinge solution for axisymmetric crushing of tubes[J].International Journal of Mechanical Sciences, 1986, 28(3):135-151.
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