| Superior mechanical properties and deformation mechanisms of heterogeneous laminates under dynamic shear loading |
| He JY(何金燕); Yuan FP(袁福平) ; Yang MX(杨沐鑫); Jiao SH(焦四海); Wu XL(武晓雷)
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| 通讯作者 | Yuan, Fuping([email protected])
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| 发表期刊 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2019-05-22
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| 卷号 | 756页码:492-501 |
| ISSN | 0921-5093
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| 摘要 | High-strain rate response of low C steel/304 stainless steel (SS) laminates was characterized by hat-shaped specimen using Hopkinson-bar technique at a strain rate of about 7 x 10(4) s(-1). Better dynamic shear properties were observed in the laminates, compared to the plain low C steel plate and the plain 304 SS plate. The laminates were found to postpone the nucleation of adiabatic shear band (ASB) in the hard zone and to delay the propagation of ASB from the hard zone to the soft zone. The conventional maximum stress criterion on ASB nucleation was found not valid any more in the laminates. The hardness difference between the hard zone and the soft zone in the laminates was found to have great influence on the patterns of ASB evolution. Nanotwins were formed in the 304 SS and grain refinement was observed in the martensite low C steel for strain hardening under dynamic shear loading. The mechanical incompatibility across the interfaces was observed to result in strain gradient and geometrically necessary dislocations at the interfaces under dynamic shear loading, contributing to extra strain hardening. The extra hardening was also found to be triggered at the propagation tip of ASB, which helps for achieving better dynamic ductility in the laminates. |
| 关键词 | Laminates
Twinning
Strain gradient
Geometrically necessary dislocations
Dynamic fracture
Shear band
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| DOI | 10.1016/j.msea.2019.04.082
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000469893400057
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| 关键词[WOS] | STRAIN-GRADIENT PLASTICITY
; HIGH-TENSILE DUCTILITY
; HIGH-STRENGTH
; ULTRAHIGH STRENGTH
; TI-6AL-4V
; BEHAVIOR
; TITANIUM
; ALLOY
; BANDS
; STEEL
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| 资助项目 | National Key R&D Program of China[2017YFA0204402]
; National Natural Science Foundation of China[11672313]
; National Natural Science Foundation of China[11572328]
; National Natural Science Foundation of China[51601204]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503]
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| 项目资助者 | National Key R&D Program of China
; National Natural Science Foundation of China
; Strategic Priority Research Program of the Chinese Academy of Sciences
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| 论文分区 | 一类
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| 力学所作者排名 | 1
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| RpAuthor | Yuan, Fuping
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/79337
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| 专题 | 非线性力学国家重点实验室
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推荐引用方式
GB/T 7714 |
He JY,Yuan FP,Yang MX,et al. Superior mechanical properties and deformation mechanisms of heterogeneous laminates under dynamic shear loading[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,756:492-501.Rp_Au:Yuan, Fuping
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| APA |
何金燕,袁福平,杨沐鑫,焦四海,&武晓雷.(2019).Superior mechanical properties and deformation mechanisms of heterogeneous laminates under dynamic shear loading.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,756,492-501.
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| MLA |
何金燕,et al."Superior mechanical properties and deformation mechanisms of heterogeneous laminates under dynamic shear loading".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 756(2019):492-501.
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