Detection of buckling and crack growth in the delaminated composites using fiber optic sensor

被引：35

作者：

Park, JW ^{[1
]}

Ryu, CY ^{[1
]}

Kang, HK ^{[1
]}

Hong, CS ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Aerosp Engn, Yusong Gu, Taejon 305701, South Korea

来源：

JOURNAL OF COMPOSITE MATERIALS | 2000年 / 34卷 / 19期

关键词：

buckling; delamination growth; fiber optic sensor; extrinsic Fabry-Perot interferometer (EFPI); short time Fourier transform (STFT); wavelet transform (WT);

D O I：

10.1106/RL3E-EBU4-YT7Y-0RUM

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

To estimate the overall performance of composites, it is necessary to identify the influence of the buckling and delamination failure. For that reason. a fiber optic sensor was applied to the delaminated composite beams to detect the buckling occurrence and delamination growth. The delaminated composite beams subjected to the compressive load were rested to identify the signal characteristics of the fiber optic sensor. The signals of the fiber optic sensor from buckling or delamination growth were quantitatively evaluated by short time Fourier transform and wavelet transform.

引用

页码：1602 / 1623

页数：22

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