期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2020
卷号：474
期号：7
DOI：10.1088/1755-1315/474/7/072011
语种：English
出版社：IOP Publishing
摘要：Fiber Bragg grating sensors are usually buried in the matrix or pasted on the surface of the matrix in practical engineering applications. Due to the different physical and mechanical properties of the fiber, the protective layer, the adhesive layer and the matrix material, the measured strain of fiber Bragg grating sensors is not equal to the actual strain of the matrix structure, so it is necessary to correct the measured strain. Based on substrate optical fiber grating sensor as the research object, established the "matrix structure, colloid, substrate, colloid, and fiber Bragg grating sensor of strain transfer model, deduce the substrate optical fiber grating sensor measurement of strain and matrix structure actual strain between the strain transfer calculation formula, and through the finite element analysis and experiment validation of theoretical derivation. Finite element analysis and experiments verify the correctness of theoretical derivation, and the strain transfer formula obtained can be applied to practical engineering.
