Interfacial delamination in glass-fiber/polymer-foam-core sandwich composites using singlemode-multimode-singlemode optical fiber sensors: Identification based on experimental investigation

被引：6

作者：

Mitra, Nilanjan ^{[1
]}

Patra, Alak K. ^{[1
]}

Singh, Satya P. ^{[2
]}

Mondal, Shyamal ^{[2
]}

Datta, Prasanta K. ^{[2
]}

Varshney, Shailendra K. ^{[2
]}

机构：

[1] Indian Inst Technol Kharagpur, Dept Civil Engn, Kharagpur, W Bengal, India

[2] Indian Inst Technol Kharagpur, Dept Phys, Kharagpur, W Bengal, India

来源：

JOURNAL OF SANDWICH STRUCTURES & MATERIALS | 2020年 / 22卷 / 01期

关键词：

Optical fiber; singlemode-multimode-singlemode fiber sensor; interfacial delamination; sandwich composite; embedded sensor; GROWTH PHENOMENA; STRAIN; INTERFERENCE; FRACTURE; PANELS;

D O I：

10.1177/1099636217733983

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Identification of interfacial delamination in the glass fiber/polymer-foam-core sandwich composites is difficult if the delamination does not propagate to the side surface of the specimen. However, these damages may eventually lead to compromising the sandwich composite structural component. A cost-effective novel embedded fiber optic sensor is being proposed in this manuscript, which works on the principle of multimode interference, to perform distributed sensing of interfacial delamination within the sandwich composites while in service. Even though this easy to use methodology has been used to identify interfacial delamination, this methodology can also be used for different other types of interfacial/interlaminar distributed strain sensing of samples under mechanical as well as thermal loads.

引用

页码：40 / 54

页数：15

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