| 多晶冰抗压强度的粒径效应 |
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| 引用本文： | 彭万巍,朱元林.多晶冰抗压强度的粒径效应[J].力学与实践,1998,20(4):36-38. |
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| 作者姓名： | 彭万巍 朱元林 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 |
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| 摘 要： | 对平均粒径分别为０５ｍｍ、１ｍｍ、２ｍｍ、３ｍｍ、４ｍｍ和６５ｍｍ的人造多晶冰在－５℃和６μｓ－１应变率下进行了单轴抗压强度试验．试验结果表明，多晶冰的极限抗压强度对粒径变化十分敏感，且与粒径平方根的倒数呈正比例关系，破坏应变随粒径的增大而呈线性减小．
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| 关 键 词： | 多晶冰 抗压强度 粒径效应 |
| 收稿时间： | 2006-08-01 |
EFFECTS OF GRAIN SIZE ON THE UNIAXIAL COMPRESSIVE STRENGTH OF POLYCRYSTALLINE ICE |
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| PENG Wanwei,ZHU Yuanlin,ZHANG Jiayi.EFFECTS OF GRAIN SIZE ON THE UNIAXIAL COMPRESSIVE STRENGTH OF POLYCRYSTALLINE ICE[J].Mechanics and Engineering,1998,20(4):36-38. |
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| Authors: | PENG Wanwei ZHU Yuanlin ZHANG Jiayi |
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| Abstract: | Uniaxial compressive strength tests were conducted for polycrystalline ice with average grain sizes of 0 5,1,2,3,4 and 6 5mm at -5℃ and at the strain rate of 6μs -1 . It is found that the compressive strength of ice is very sensitive to the grain size and is directly proportional to the reciprocal of squre root of the grain size.And the failure strain decreases linearly with the increase of the grain size. |
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| Keywords: | polycrystalline ice compressive strength grain size effect |
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