Dynamic strength of distill water and lake water ice at high strain rates | |
Wu XQ(吴先前); Prakash V | |
刊名 | International Journal of Impact Engineering |
2015 | |
通讯作者邮箱 | vikas.prakash@case.edu |
卷号 | 76页码:155-165 |
关键词 | Dynamic compression of ice Modified split Hopkinson pressure bar Uniaxial compression and oblique impact Strain rate sensitivity of ice Peak stress of ice |
ISSN号 | 0734-743X |
通讯作者 | Prakash, V (reprint author), Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA. |
产权排序 | [Prakash, Vikas] Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA; [Wu, Xianqian] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China |
合作状况 | 国际 |
中文摘要 | In the present study, a modified split Hopkinson pressure bar (SHPB) is employed to investigate dynamic response of lake water ice and distilled water ice under dynamic uniaxial compression and combined compression and shear loading (oblique impact) at strain rates in the range of 80e600 s 1 and at test temperature of 15 C. For both ice the uniaxial dynamic compressive strengths show positive strain rate sensitivity over the range of strain rates employed. The strength of lake water ice under uniaxial compression is observed to be consistently higher when compared to distill water ice. Moreover, the peak stresses of both lake water ice and distill water ice are observed to be consistently lower under oblique impact when compared to those obtained under uniaxial compression. In addition, for oblique impact the sensitivity of the logarithmic of peak stress to the logarithm of the applied strain rate for lake water and distilled water ice is higher than that obtained under uniaxial compression. A consistent feature observed in the post-peak stress regime of both lake water ice and distill water ice is the presence of a long tail in their dynamic stress versus strain curves, indicating complex inter-particle interactions in the fragmented ice after the attainment of the peak stresses. This residual strength of pulverized/fragmented ice can be best understood by considering the damaged/fragmented ice as an assemblage of wet highly-fragmented granular material created by adiabatic heating during grain-to-grain frictional sliding and/or impact-induced melting, held together by ice melt and/or recrystallization in the post-peak-stress regime. |
分类号 | 一类 |
类目[WOS] | Engineering, Mechanical ; Mechanics |
研究领域[WOS] | Engineering ; Mechanics |
关键词[WOS] | HOPKINSON PRESSURE BAR ; LOW SLIDING VELOCITIES ; SITU TENSILE-STRENGTH ; FRACTURE-TOUGHNESS ; UNIAXIAL COMPRESSION ; FRICTION ; IMPACT ; BEHAVIOR ; FAILURE |
收录类别 | SCI ; EI |
资助信息 | The authors acknowledge financial support from Hankook Tire Company and NASA under contract NNX13A74A in conducting this research. Also, the authors would like to thank Dr. Jan Terziyski of Hankook Tire Company for several helpful discussions during the course of this research. |
原文出处 | http://dx.doi.org/10.1016/j.ijimpeng.2014.09.013 |
语种 | 英语 |
WOS记录号 | WOS:000346541800015 |
公开日期 | 2014-10-31 |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/49125] |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
推荐引用方式 GB/T 7714 | Wu XQ,Prakash V. Dynamic strength of distill water and lake water ice at high strain rates[J]. International Journal of Impact Engineering,2015,76:155-165. |
APA | Wu XQ,&Prakash V.(2015).Dynamic strength of distill water and lake water ice at high strain rates.International Journal of Impact Engineering,76,155-165. |
MLA | Wu XQ,et al."Dynamic strength of distill water and lake water ice at high strain rates".International Journal of Impact Engineering 76(2015):155-165. |
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