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| On post-instability processes in adiabatic shear in hot rolled steel | |
Xing D; Bai YL(白以龙) ; Zheng ZM(郑哲敏); Huang XL
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| Source Publication | Journal of The Mechanics and Physics of Solids
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| 1991 | |
| Volume | 39Issue:8Pages:1017-& |
| ISSN | 0022-5096 |
| Abstract | EXPERIMENTS carried out using a split Hopkinson torsional bar have shown that only one shear band develops in specimens of hot rolled steel which break during testing. We observed, however, that in specimens which were not deformed to failure, several fine shear bands appeared. We believe that these formed during the loading cycle before the appearance of the final shear band and were not due to the effect of unloading. So we developed a numerical model to study the evolution of shear banding from several finite amplitude disturbances (FADs) in both temperature and strain rate. This numerical model reveals the detailed processes by which the FADs evolve into a fully developed shear band and suggests that beyond instability, the so-called shear banding process consists of two stages: inhomogeneous shearing and true shear-banding. The latter is characterized by the collapse of the stress and an abrupt increase of the local shear strain rate. |
| Keyword | High-strain Rates Band Formation Localization Temperature Initiation Growth |
| DOI | 10.1016/0022-5096(91)90050-X |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1991GR87100002 |
| WOS Keyword | HIGH-STRAIN RATES ; BAND FORMATION ; LOCALIZATION ; TEMPERATURE ; INITIATION ; GROWTH |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39514 |
| Collection | 力学所知识产出(1956-2008) |
| Recommended Citation GB/T 7714 | Xing D,Bai YL,Zheng ZM,et al. On post-instability processes in adiabatic shear in hot rolled steel[J]. Journal of The Mechanics and Physics of Solids,1991,39,8,:1017-&. |
| APA | Xing D,白以龙,郑哲敏,&Huang XL.(1991).On post-instability processes in adiabatic shear in hot rolled steel.Journal of The Mechanics and Physics of Solids,39(8),1017-&. |
| MLA | Xing D,et al."On post-instability processes in adiabatic shear in hot rolled steel".Journal of The Mechanics and Physics of Solids 39.8(1991):1017-&. |
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