Evaluation of mechanical properties of structural materials by a spherical indentation based on the representative strain-an improved algorithm at great depth ratio
文献类型：期刊论文
| 作者 | J. Chen ; H. N. Chen |
| 刊名 | Acta Metallurgica Sinica-English Letters
 |
| 出版日期 | 2011 |
| 卷号 | 24期号:5页码:405-414 |
| 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 |
| ISSN号 | 1006-7191 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30255]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 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. |
| 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. |
| 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. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。