| 面积型缺陷相控阵超声检测可靠性的研究 |
| |
| 引用本文： | 李莹莹,陈军,林莉. 面积型缺陷相控阵超声检测可靠性的研究[J]. 无损探伤, 2014, 38(4): 6-9 |
| |
| 作者姓名： | 李莹莹 陈军 林莉 |
| |
| 作者单位： | 大连理工大学无损检测研究所,辽宁大连,116024 |
| |
| 摘 要： | 面积型缺陷与超声声束相互作用时,由于其取向的不同,会使检测结果产生变化,从而影响超声检测的检出能力,即检测可靠性。本文针对相控阵超声检测,选取厚度55mm碳钢试块中高度为1mm~10mm的底面开口槽为研究对象,设置缺陷高度为变量,缺陷偏角在90°±9°范围内变化,计算了缺陷的检出率,实验结果和模拟结果符合较好。
|
| 关 键 词： | 相控阵超声 缺陷检出率 可靠性 面积型缺陷 取向 |
Research on the Reliability of Phased Array Ultrasonic Testing on Planar Defects |
| |
| Li Yingying,Chen Jun,Lin Li. Research on the Reliability of Phased Array Ultrasonic Testing on Planar Defects[J]. , 2014, 38(4): 6-9 |
| |
| Authors: | Li Yingying Chen Jun Lin Li |
| |
| Affiliation: | (Nondestructive Testing ＆ Evaluation Laboratory, Dalian University of Technology, Liaoning Dalian, 116024) |
| |
| Abstract: | The ultrasonic response to planar defects has a strong dependence on the orientation of de- fects. Thus it would affect the detection ability and the reliability of ultrasonic testing. In this study, phased array ultrasonic testing was conducted on a 55-ram-thick steel block. The bottom notches with the height from 1 mm to 10 mm and the skew angle within the range 90°±9° was evaluated. The probability of detection （POD） was calculated and compared with that obtained with CIVA simulation. It shows a good accordance with each other. |
| |
| Keywords: | Phased Array Ultrasonic Testing POD Reliability Planar defects Orientation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
