| 引伸计误差对Rp0.2测量结果的影响 |
| |
| 引用本文： | 叶宏德,方钦志.引伸计误差对Rp0.2测量结果的影响[J].材料开发与应用,2005,20(3):39-41. |
| |
| 作者姓名： | 叶宏德 方钦志 |
| |
| 作者单位： | 西安交通大学建筑工程与力学学院,陕西,西安,710049;西安交通大学建筑工程与力学学院,陕西,西安,710049 |
| |
| 摘 要： | 就引伸计标距误差和引伸计系统误差对RP0.2测量结果的影响进行了分析。对几种材料的试验误差分析表明,应变误差造成的RP0.2的测量误差依赖于材料自身的特性。对于普通材料,其应变误差对拉伸性能RP0.2造成的误差可以假设小于1%;但是对于某些合金材料,引伸计误差对拉伸性能RP0.2造成的误差大于1%,在测量这些材料时需要采用比规定级别更高的引伸计。
|
| 关 键 词： | 引伸计 误差 非比例延伸强度 |
| 文章编号： | 1003-1545(2005)03-00039-03 |
| 修稿时间： | 2004年1月30日 |
Effect of the Extensometer Error Upon Rp0.2 Measurement Results |
| |
| YE Hong-de,FANG Qin-zhi.Effect of the Extensometer Error Upon Rp0.2 Measurement Results[J].Development and Application of Materials,2005,20(3):39-41. |
| |
| Authors: | YE Hong-de FANG Qin-zhi |
| |
| Abstract: | In this paper, effect of R_(P0.2) due to the errors of extensometer gage and extensometer system was analyzed. Through test analysis on several materials, it was found that the measurement error of R_(P0.2) due to strain error depends on the property of materials. For ordinary materials, it could be supposed that the error of R_(P0.2) due to error of strain is less than 1%, but for some alloys it is rather more than 1% where a high-grade extensometer must be used to measure these alloys. |
| |
| Keywords: | Extensometer Error Non-proportional extension strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
