IMECH-IR  > 非线性力学国家重点实验室
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)
Source PublicationACTA MECHANICA SINICA
2018-04-01
Volume34Issue:2Pages:327-333
ISSN0567-7718
Abstract

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.

KeywordPlastic work-heat conversion coefficient Infrared temperature measurement Dynamic compression 7075-T651 Aluminum alloy
DOI10.1007/s10409-017-0673-8
URL查看原文
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000428923700009
WOS KeywordSTRAIN RATE DEFORMATION ; STORED ENERGY ; METALS ; PARTITION ; DETECTORS ; POLYMERS ; FAILURE ; STEELS ; FIELD ; BAR
WOS Research AreaEngineering, Mechanical ; Mechanics
WOS SubjectEngineering ; Mechanics
Funding OrganizationNational Nature Science Foundation of China [11132011, 11472288]
CSCD IDCSCD:6248917
Classification二类
Ranking1
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77810
Collection非线性力学国家重点实验室
Affiliation1.[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
Recommended Citation
GB/T 7714
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,Yuan FP,&Zhang HS.(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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