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A modified split Hopkinson torsional bar system for correlated study of τ–γ relations, shear localization and microstructural evolution
Yang R(杨荣); Zhang HS(张虎生); Shen LT(沈乐天); Xu YB(徐永波); Bai YL(白以龙); Dodd B; 杨荣
Source PublicationPhilosophical Transactions of The Royal Society A-Mathematical, Physical and Engineering Sciences
2014-05-13
Volume372Issue:2015
ISSN1364-503X
Other AbstractThe conventional split Hopkinson torsional bar (SHTB) system consists of two bars, which can successfully produce the data for the construction of dynamic torsional shear stress and strain relations. However, the system cannot provide reliable information on the progression of the deformed microstructure during the test. The reverberation of waves in the bars and the tested specimen, can spoil the microstructural pattern formed during the effective loading. This paper will briefly review a modified version of the SHTB system consisting of four bars which has been developed. This modified system can eliminate the reverberation of waves in the specimen and provide only a single rectangular torsional stress pulse, thus it can properly freeze the microstructure formed during the effective period of loading in the specimen. By using the advantage of the modified SHTB system, together with a new design of specimen, it is possible to perform the correlated study of the dynamic stress-strain response, shear localization and the evolution of the microstructure at a fixed view-field (position) on a given specimen during the sequence of the loading time. The principle, experimental set-up and procedure, calibration and some preliminary results of the correlated study are reported in the paper.
KeywordModified Split Hopkinson Torsional Bars Shear Localization Microstructural Evolution
DOI10.1098/rsta.2013.0208
Indexed BySCI ; EI
Language英语
WOS IDWOS:000334354500006
Funding OrganizationThe support from NSFC (grant nos. 11021262, and 11172305) is gratefully acknowledged.
DepartmentLNM材料的分子/细观统计力学行为
Classification二类/Q1
RankingTrue
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48827
Collection非线性力学国家重点实验室
Corresponding Author杨荣
Recommended Citation
GB/T 7714
Yang R(杨荣),Zhang HS(张虎生),Shen LT(沈乐天),等. A modified split Hopkinson torsional bar system for correlated study of τ–γ relations, shear localization and microstructural evolution[J]. Philosophical Transactions of The Royal Society A-Mathematical, Physical and Engineering Sciences,2014,372(2015).
APA Yang R.,Zhang HS.,Shen LT.,Xu YB.,Bai YL.,...&杨荣.(2014).A modified split Hopkinson torsional bar system for correlated study of τ–γ relations, shear localization and microstructural evolution.Philosophical Transactions of The Royal Society A-Mathematical, Physical and Engineering Sciences,372(2015).
MLA Yang R,et al."A modified split Hopkinson torsional bar system for correlated study of τ–γ relations, shear localization and microstructural evolution".Philosophical Transactions of The Royal Society A-Mathematical, Physical and Engineering Sciences 372.2015(2014).
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