Distributed Optical Sensing in Composite Laminate Adhesive Bonds
| Autor: | Leeanna Meadows, Rani W. Sullivan, Keith A. Vehorn |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Optical fiber Materials science Bond strength Composite number 02 engineering and technology Polymer 021001 nanoscience & nanotechnology law.invention Shear (sheet metal) 020210 optoelectronics & photonics chemistry law Ultimate tensile strength 0202 electrical engineering electronic engineering information engineering Adhesive Composite material 0210 nano-technology Layer (electronics) |
| Zdroj: | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. |
| Popis: | As the use of polymer matrix composites for primary structures increases, there is a growing need for monitoring the adhesive bonds that are used in the assembly of these structures. Distributed sensing using optical fibers shows promise for monitoring these bonds due to their small size, light weight, and ability to obtain continuously distributed strain data. Therefore, the objective of this study is to investigate the feasibility of using embedded optical fibers to characterize the adhesive layer in composite joint specimens. Double lap shear specimens with embedded optical fibers were tensile tested to obtain the strain response of the adhesive layer and to determine the impact of the optical fibers on the bond strength. The manufacturing techniques for embedding the fibers are presented. The measured strain distribution from the optical fibers compares well with data obtained from finite element analysis. Additionally, the embedded the fibers do not seem to impact the strength of the adhesive bond. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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