Void and crack detection of polymethacrylimide foams based on terahertz time-domain spectroscopic imaging
文献类型：期刊论文
| 作者 | Xing, Liyun; Cui, Hong-Liang ; Shi, Changcheng; Chang, Tianying; Wei, Dongshan; Du, Chunlei; Zhou Zhenxiong; Zhang, Songnian
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| 刊名 | JOURNAL OF SANDWICH STRUCTURES & MATERIALS
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| 出版日期 | 2017 |
| 卷号 | 19期号:3页码:348-363 |
| ISSN号 | 1099-6362 |
| DOI | 10.1177/1099636216680165 |
| 通讯作者 | Cui, HL (reprint author), Jilin Univ, Coll Instrumentat Sci & Elect Engn, Changchun 130061, Jilin, Peoples R China. |
| 英文摘要 | Terahertz reflection imaging is considered as a potential diagnostic tool for the investigation of polymethacrylimide foam defects. Using terahertz time-domain spectroscopy (TDS) and detection methods based on terahertz spectroscopic analysis, the reflection imaging results of different thicknesses of polymethacrylimide foam with two kinds of detections (cracks and voids) are studied. The samples (Degussa Rohacell WF71) are planar slabs of polymethacrylimide foams with thicknesses of 35mm, 60.5mm and 10mm. It is found that the same kinds of polymethacrylimide foam defects with different foam thicknesses have similar spectral characteristics, with marked differences only in the amplitude and phase of the reflected wave. In view of this, we focus our study on the defective spectral characteristics of one of the foams (35mm thickness). The characteristics of void and crack defects are analyzed in the time domain, which is based mainly on the variation of the reflected waveform. In particular, the imaging and clear identification of voids of less than 2.4mm in diameter, fine cracks (0.3mm wide), and the quantification of defects can be readily achieved using the terahertz non-destructive testing technique described here. |
| 语种 | 英语 |
| WOS记录号 | WOS:000400524100004 |
| 源URL | [http://172.16.51.4:88/handle/2HOD01W0/237]  |
| 专题 | 太赫兹技术研究中心 微纳制造与系统集成研究中心 |
| 作者单位 | (1) Jilin Univ, Coll Instrumentat Sci & Elect Engn, Changchun 130061, Jilin, Peoples R China; (2) Beihua Univ, Coll Elect Informat Engn, Jilin, Jilin, Peoples R China; (3) Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr THz Technol, Key Lab Multiscale Mfg Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Liyun,Cui, Hong-Liang,Shi, Changcheng,et al. Void and crack detection of polymethacrylimide foams based on terahertz time-domain spectroscopic imaging[J]. JOURNAL OF SANDWICH STRUCTURES & MATERIALS,2017,19(3):348-363. |
| APA | Xing, Liyun.,Cui, Hong-Liang.,Shi, Changcheng.,Chang, Tianying.,Wei, Dongshan.,...&Zhang, Songnian.(2017).Void and crack detection of polymethacrylimide foams based on terahertz time-domain spectroscopic imaging.JOURNAL OF SANDWICH STRUCTURES & MATERIALS,19(3),348-363. |
| MLA | Xing, Liyun,et al."Void and crack detection of polymethacrylimide foams based on terahertz time-domain spectroscopic imaging".JOURNAL OF SANDWICH STRUCTURES & MATERIALS 19.3(2017):348-363. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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