Plastic instability of LY12 aluminum alloy ring under longitudinal impact compression

Shi Chunying; Xu Songlin; Shan Junfang; Wang Pengfei; Hu Shisheng

doi:10.11883/1001-1455(2017)03-0471-08

Volume 37 Issue 3

Apr. 2017

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2017 > 37(3): 471-478

Shi Chunying, Xu Songlin, Shan Junfang, Wang Pengfei, Hu Shisheng. Plastic instability of LY12 aluminum alloy ring under longitudinal impact compression[J]. Explosion And Shock Waves, 2017, 37(3): 471-478. doi: 10.11883/1001-1455(2017)03-0471-08

Citation:

Shi Chunying, Xu Songlin, Shan Junfang, Wang Pengfei, Hu Shisheng. Plastic instability of LY12 aluminum alloy ring under longitudinal impact compression[J]. Explosion And Shock Waves, 2017, 37(3): 471-478. doi: 10.11883/1001-1455(2017)03-0471-08

Citation:

PDF( 2729 KB)

Plastic instability of LY12 aluminum alloy ring under longitudinal impact compression

doi: 10.11883/1001-1455(2017)03-0471-08

CAS Key Laboratory for Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, Anhui, China

Received Date: 2015-12-16
Rev Recd Date: 2016-04-29
Publish Date: 2017-05-25

Abstract

Abstract

Research on the longitudinal impact compression of an aluminum alloy ring found that an obvious stress-drop process will appear in the macro plastic hardening stage of the specimen under certain conditions. In order to reveal the mechanism of this stress-drop process, we conducted the longitudinal impact compression experiment on LY12 aluminum alloy ring specimens whose ratio of OD, ID and height was 6:3:2 using the split Hopkinson pressure bar (SHPB) under the three end face roughness conditions: lubrication, fine grinding and rough grinding. The experiment results show that the stress-drop process occurs mainly in the large strain and high strain rate loading conditions. Moreover, the results of the metallurgical analysis of the aluminum alloy ring specimens show that the formation and development of the adiabatic shear band is the intrinsic mechanism of the stress-drop process, which is a dynamic plastic instability. This study can serve as a reference for the study of the heat insulation shear band in metal materials under impact.
- impact compression,
- split Hopkinson pressure bar (SHPB),
- metallurgical analysis,
- shear band,
- plastic instability

FullText(HTML)

References(20)

References

[1]	Avitzur B.Forging of hollow disk[J].Israel Journal of Technology, 1964, 2(3):295-304.
[2]	Hill R.The mathematical theory of plasticity[M].Oxford:Oxford University Press, 1950.
[3]	Male A T, Depierre V.The validity of mathematical solutions for determining friction from the ring compression test[J].Journal of Tribology, 1970, 92(3):389. doi: 10.1115-1.3451419/
[4]	Male A T, Cockcroft M G.A method for the determination of the coefficient of friction of metals under conditions of bulk plastic deformation[J].Journal of the Institute of Metals, 1964, 93:38-46. http://cn.bing.com/academic/profile?id=dcc4dfaf7e38bf5041e155e592f3b877&encoded=0&v=paper_preview&mkt=zh-cn
[5]	Hartley R S, Cloete T J, Nurick G N.An experimental assessment of friction effects in the split Hopkinson pressure bar using the ring compression test[J].International Journal of Impact Engineering, 2007, 34(10):1705-1728. doi: 10.1016/j.ijimpeng.2006.09.003
[6]	Alves M, Karagiozova D, Micheli G B, et al.Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen[J].International Journal of Impact Engineering, 2012, 49(6):130-141. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=453b3b533be09d4a906e27b52a4eda8b
[7]	Song B, Chen W, Ge Y, et al.Dynamic and quasi-static compressive response of porcine muscle.[J].Journal of Biomechanics, 2007, 40(13):2999-3005. doi: 10.1016/j.jbiomech.2007.02.001
[8]	杨茨, 徐松林, 易洪昇.冲击载荷下圆环纵向压缩力学行为研究[J].实验力学, 2014, 29(1):18-25. http://d.old.wanfangdata.com.cn/Periodical/sylx201401003 Yang Ci, Xu Songlin, Yi Hongsheng.Research on mechanical behaviors of ring under longitudinal impact load[J].Journal of Experimental Mechanics, 2014, 29(1):18-25. http://d.old.wanfangdata.com.cn/Periodical/sylx201401003
[9]	杨茨, 徐松林, 易洪昇.冲击载荷下圆环压缩变形特性研究[J].振动与冲击, 2015, 34(11):128-132. http://d.old.wanfangdata.com.cn/Periodical/zdycj201511023 Yang Ci, Xu Songlin, Yi Hongsheng.Research on deformation properties of ring under longitudinal impact load[J].Vibration and Impact, 2015, 34(11):128-132. http://d.old.wanfangdata.com.cn/Periodical/zdycj201511023
[10]	Liu G, Wang L L, Liu Z Q, et al.Compressive formability of 7075 aluminum alloy rings under hydrostatic pressure[J].Transactions of Nonferrous Metals Society of China, 2006, 16(5):1103-1109. doi: 10.1016/S1003-6326(06)60385-3
[11]	胡忠, 朱利华, 李家庆.圆环压缩过程的有限元模拟:一种标定摩擦系数理论曲线的新方法[J].金属学报, 1997, 33(4):337-344. doi: 10.3321/j.issn:0412-1961.1997.04.001 Hu Zhong, Zhu Lihua, Li Jiaqing.Simulation of ring compression by FEM:A new way to calibrate theoretical curves of friction coefficient[J].Acta Metallurgica Sinica, 1997, 33(4):337-344. doi: 10.3321/j.issn:0412-1961.1997.04.001
[12]	卢维娴, 王礼立, 陆在庆.β-Ti合金在高应变率下的绝热剪切现象[J].金属学报, 1986, 22(4):39-42. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CAS201303040000292568 Lu Weixian, Wang Lili, Lu Zaiqing.Adiabatic shearing phenomenon of β-Ti alloy at high strain rates[J].Acta Metallurgica Sinica, 1986, 22(4):39-42. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CAS201303040000292568
[13]	徐天平, 王礼立, 卢维娴.高应变率下钛合金Ti-6Al-4V的热-粘塑性特性和绝热剪切变形[J].爆炸与冲击, 1987, 7(1):1-8. http://www.bzycj.cn/CN/abstract/abstract10977.shtml Xu Tianping, Wang Lili, Lu Weixian.The thermo-viscoplasticity and adiabatic shear deformation for a titanium alloy Ti-6Al-4V under high strain rates[J].Explosion and Shock Waves, 1987, 7(1):1-8. http://www.bzycj.cn/CN/abstract/abstract10977.shtml
[14]	尹嘉明, 李伯龙, 韩鹏, 等.动态压缩下5A06铝合金剪切变形局部化[J].科学技术与工程, 2012, 12(17):4119-4123. doi: 10.3969/j.issn.1671-1815.2012.17.015 Yin Jiaming, Li Bolong, Han Peng, et al.Shear localization deformation in 5A05 aluminum alloy during compressive deformation[J].Science Technology and Engineering, 2012, 12(17):4119-4123. doi: 10.3969/j.issn.1671-1815.2012.17.015
[15]	尚兵, 胡时胜, 王虎.0Cr17Mn5Ni4Mo3Al不锈钢绝热剪切破坏分析[J].实验力学, 2008, 23(4):339-344. http://d.old.wanfangdata.com.cn/Periodical/sylx200804008 Shang Bing, Hu Shisheng, Wang Hu.Analysis of adiabatic shear band failure of 0Cr17Mn5Ni4Mo3Al stainless steel[J].Journal of Experimental Mechanics, 2008, 23(4):339-344. http://d.old.wanfangdata.com.cn/Periodical/sylx200804008
[16]	魏志刚, 李永池, 李剑荣, 等.冲击载荷作用下钨合金材料绝热剪切带形成机理[J].金属学报, 2000, 36(12):1263-1268. doi: 10.3321/j.issn:0412-1961.2000.12.008 Wei Zhigang, Li Yongchi, Li Jianrong, et al.Formation mechanism of adiabatic shear band in tungsten heavy alloys[J].Acta Metallurgica Sinica, 2000, 36(12):1263-1268. doi: 10.3321/j.issn:0412-1961.2000.12.008
[17]	徐永波, 白以龙.动态载荷下剪切变形局部化、微结构演化与剪切断裂研究进展[J].力学进展, 2007, 37(4):496-516. doi: 10.3321/j.issn:1000-0992.2007.04.002 Xu Yongbo, Bai Yilong.Shear localization, microstructure evolution and fracture under high-strain rate[J].Advances in Mechanics, 2007, 37(4):496-516. doi: 10.3321/j.issn:1000-0992.2007.04.002
[18]	Bai Y L.Thermo-plastic instability in simple shear[J].Journal of the Mechanics and Physics of Solids, 1982, 30(4):195-207. doi: 10.1016/0022-5096(82)90029-1
[19]	Xu Y B, Zhong W L, Chen Y J, et al.Shear localization and recrystallization in dynamic deformation of 8090 Al-Li alloy[J].Materials Science and Engineering A, 2001, 299(1/2):287-295. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=d1a95e60e96bd1849977ba8ff9929746
[20]	Xu Y B, Yu J Q, Shen L T, et al.Thermoplastic shear localization in titanium alloys[J].Materials Science and Technology, 2000, 19:609-611. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=1444a11a2ae33338e2eff70cbd0e84a8