研究目的
To numerically and experimentally study and propose Fiber Bragg Grating (FBG) sensors embedded in 3D printed casings for strain measurement of structural systems with complex configuration.
研究成果
It is feasible to embed FBG sensors in 3D printed casings. The quality control of the embedding process is of instrumental importance. Future studies should better understand the adhesive compound and the impact of using more sophisticated printers.
研究不足
The difference between the numerical and experimental calibration factor can be explained by the simplifications adopted in the models, which assumes perfect bonding between the casing and the structure, as well as, by the adhesive mechanical properties used to attach the casing to the structure.
1：Experimental Design and Method Selection:
The casings were first numerically modeled using a commercial finite element software. After conceptualization, they were printed and introduced in two different applications.
2：Sample Selection and Data Sources:
The casings were printed using two different printers: one using the fused deposition modeling (FDM) method and the other using the stereolithography (SLA) method.
3：List of Experimental Equipment and Materials:
The materials used were polylactic acid (PLA) filament and methacrylate photopolymer resin (FLGPCL02 from FormLabs).
4：Experimental Procedures and Operational Workflow:
The embedding process of the optical fibers in the casings was detailed, including the steps for each printer type.
5：Data Analysis Methods:
The experimental results were compared with electrical strain gauges, and a calibration factor was determined to accurately predict strain using the embedded FBG sensors.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
