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Investigation on the plastic work-heat conversion coefficient of 7075-T651 aluminum alloy during an impact process based on infrared temperature measurement technology
Zhang T; Guo ZR; Yuan FP(袁福平); Zhang HS(张虎生)
2018-04-01
发表期刊ACTA MECHANICA SINICA
卷号34期号:2页码:327-333
ISSN0567-7718
摘要The plastic work-heat conversion coefficient is one key parameter for studying the work-heat conversion under dynamic deformation of materials. To explore this coefficient of 7075-T651 aluminum alloy under dynamic compression, dynamic compression experiments using the Hopkinson bar under four groups of strain rates were conducted, and the temperature signals were measured by constructing a transient infrared temperature measurement system. According to stress versus strain data as well as the corresponding temperature data obtained through the experiments, the influences of the strain and the strain rate on the coefficient of plastic work converted to heat were analyzed. The experimental results show that the coefficient of plastic work converted to heat of 7075-T651 aluminum alloy is not a constant at the range of 0.85-1 and is closely related to the strain and the strain rate. The change of internal structure of material under high strain rate reduces its energy storage capacity, and makes almost all plastic work convert into heat.
关键词Plastic work-heat conversion coefficient Infrared temperature measurement Dynamic compression 7075-T651 Aluminum alloy
DOI10.1007/s10409-017-0673-8
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000428923700009
关键词[WOS]STRAIN RATE DEFORMATION ; STORED ENERGY ; METALS ; PARTITION ; DETECTORS ; POLYMERS ; FAILURE ; STEELS ; FIELD ; BAR
WOS研究方向Engineering, Mechanical ; Mechanics
WOS类目Engineering ; Mechanics
项目资助者National Nature Science Foundation of China [11132011, 11472288]
论文分区二类
力学所作者排名1
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77810
专题非线性力学国家重点实验室
作者单位1.[Zhang, Tong
2.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
3.[Zhang, Tong
4.Yuan, Fu-Ping
5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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Zhang T,Guo ZR,Yuan FP,et al. Investigation on the plastic work-heat conversion coefficient of 7075-T651 aluminum alloy during an impact process based on infrared temperature measurement technology[J]. ACTA MECHANICA SINICA,2018,34(2):327-333.
APA Zhang T,Guo ZR,袁福平,&张虎生.(2018).Investigation on the plastic work-heat conversion coefficient of 7075-T651 aluminum alloy during an impact process based on infrared temperature measurement technology.ACTA MECHANICA SINICA,34(2),327-333.
MLA Zhang T,et al."Investigation on the plastic work-heat conversion coefficient of 7075-T651 aluminum alloy during an impact process based on infrared temperature measurement technology".ACTA MECHANICA SINICA 34.2(2018):327-333.
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