In‐situ monitoring of glass fiber/epoxy composites by the embedded multi‐walled carbon nanotube coated glass fiber sensor: From fabrication to application
Source abstract
Abstract
Abstract Monitoring the curing defects as well as damages that occur in the fabrication and application process is important for ensuring the safety of composite structures. In this paper, a highly sensitive 1‐D line sensor is designed to achieve self‐sensing and diagnosing functionalities in both the fabrication and application of glass fiber reinforced epoxy (GF/epoxy) composites. The sensor consists of multi‐walled carbon nanotube coated glass fiber (MWCNT@GF), which is sensing the damage by the principle of resistance change. Due to the vacuum‐assisted resin infusion process, the MWCNT@GF sensor is embedded into GF/epoxy composite laminates, and hence, it can monitor the resin frontal flow, curing, and especially the flow defects. In the subsequent application, the tensile performance of a GF/epoxy composite joint is evaluated by not only the force‐displacement curve but also the displacement‐dependent resistance change of the sensor. Tensile damage modes are distinguished, which is for the first time to be reported. The MWCNT@GF sensor is mechanically stable and highly sensitive; hence, it can be used to follow the composite performance from fabrication until the end of life.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Smart Materials for Construction · Mechanical Behavior of Composites · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Aerospace Engineering and Applied Mechanics Tongji University Shanghai PR China
School of Civil Engineering and Architecture East China Jiaotong University Nanchang PR China
School of Mechanical and Power Engineering East China University of Science and Technology Shanghai PR China
The Boiler & pressure Vesssl Safety Inspection Instiyute of Henan Province Luoyang PR China
College of Civil Science and Engineering Yangzhou University Yangzhou PR China
Funding
Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China
References (39)
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