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Dynamic strength of distill water and lake water ice at high strain rates
Wu XQ(吴先前); Prakash V; Prakash, V (reprint author), Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA.
Source PublicationInternational Journal of Impact Engineering
2015
Volume76Pages:155-165
ISSN0734-743X
Abstract
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 s1 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.
KeywordDynamic Compression Of Ice Modified Split Hopkinson Pressure Bar Uniaxial Compression And Oblique Impact Strain Rate Sensitivity Of Ice Peak Stress Of Ice
DOI10.1016/j.ijimpeng.2014.09.013
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000346541800015
WOS KeywordHOPKINSON PRESSURE BAR ; LOW SLIDING VELOCITIES ; SITU TENSILE-STRENGTH ; FRACTURE-TOUGHNESS ; UNIAXIAL COMPRESSION ; FRICTION ; IMPACT ; BEHAVIOR ; FAILURE
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationThe 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.
DepartmentLMFS冲击与耦合效应(LHO)
Classification一类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49125
Collection流固耦合系统力学重点实验室
Corresponding AuthorPrakash, V (reprint author), Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA.
Recommended Citation
GB/T 7714
Wu XQ,Prakash V,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,&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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