| Evaluation of mechanical properties of structural materials by a spherical indentation based on the representative strain-an improved algorithm at great depth ratio |
| J. Chen; H. N. Chen
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| 2011
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| 发表期刊 | Acta Metallurgica Sinica-English Letters
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| ISSN | 1006-7191
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| 卷号 | 24期号:5页码:405-414 |
| 摘要 | At great depth ratio, two methodologies based on the representative strain were improved to extract mechanical properties of metallic engineering structural materials from P-h curve of an indentation response. The improved aspects include: the combination of great ratio h(1)/R=0.1 and h(2)/R=0.4 replaced h(1)/R=0.01 and h(2)/R=0.06 (Cao's method) and h(1)/R=0.1 and h(2)/R=0.3 (Ogasawara's method); three types of metallic engineering structural materials with obviously different elastic modulus were dealt with to get their calculation parameters, respectively; a new parameter reflecting the effect of work-hardening exponent n was introduced to get the dimensionless function which is independent of n and a relationship between W/(h(3)sigma(r)S) and E*/(sigma(r)S) at great depth ratio. By using the results of finite element simulation, the efficiency and accuracy of the improved method have been proved, and it showed that the accuracy of the improved method is much better than the former method. |
| 部门归属 | [chen, jun; chen, huaining; chen, jing] chinese acad sci, inst met res, shenyang 110016, peoples r china.;chen, hn (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;hnchen@imr.ac.cn
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| 关键词 | Spherical Indentation
Representative Strain
Metallic Engineering
Structural Material
Mechanical Property
Great Depth Ratio
Measuring Elastoplastic Properties
Energy-based Method
Plastic
Properties
Conical Indentation
Metal Materials
Hardness Definitions
Bulk Materials
Extract
Tests
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| URL | 查看原文
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| WOS记录号 | WOS:000296935600009
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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://ir.imr.ac.cn/handle/321006/30255
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
J. Chen,H. N. Chen. Evaluation of mechanical properties of structural materials by a spherical indentation based on the representative strain-an improved algorithm at great depth ratio[J]. Acta Metallurgica Sinica-English Letters,2011,24(5):405-414.
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| APA |
J. Chen,&H. N. Chen.(2011).Evaluation of mechanical properties of structural materials by a spherical indentation based on the representative strain-an improved algorithm at great depth ratio.Acta Metallurgica Sinica-English Letters,24(5),405-414.
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| MLA |
J. Chen,et al."Evaluation of mechanical properties of structural materials by a spherical indentation based on the representative strain-an improved algorithm at great depth ratio".Acta Metallurgica Sinica-English Letters 24.5(2011):405-414.
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