Wireless Piezoresistive Pressure Sensors Used for Quality Control in Glass Fiber Composite Laminates

Gleason, Minerva G. Vargas; Jedermann, Reiner; Dimassi, Adli; Lang, Walter

doi:10.1109/icsens.2018.8589933

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…[5] and [6] integrated off-the-shelf RFID transponders to monitor production, thereby showing that embedding wireless sensors into FRP is generally feasible. Both [7] and [8] have presented work on wireless temperature and pressure monitoring for flow front observation and prevention of local voids. The sensors worked well during infusion but dropped out as temperature increased during cure.…”

Section: State Of the Artmentioning

confidence: 99%

E5.4 - Material-integrated Temperature Sensors for Wireless Monitoring of Infusion and Curing in Composite Production

Betram,

Brink,

Lang

2023

Lectures

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This paper presents a novel sensor node for wireless monitoring of local laminate temperature for production of fibre reinforced plastic (FRP) composites. The sensor is realized as a battery-less, flexible RFID tag for material integration and therefore usable throughout the whole composite life cycle. Measurement results are reported for a case study of an eight-layer glass fiber composite production, allowing for flow front monitoring during infusion, and giving information about curing progress.

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Section: State Of the Artmentioning

confidence: 99%

E5.4 - Material-integrated Temperature Sensors for Wireless Monitoring of Infusion and Curing in Composite Production

Betram,

Brink,

Lang

2023

Lectures

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“…[ 23 ] The Institute for Microsensors, Actuators, and Systems at the University of Bremen developed an embedded wireless pressure and temperature sensor for monitoring resin flow during the fabrication processes of glass and carbon fiber composites. [ 24–26 ] As a direct application in SHM, Zarifi et al. developed a chipless RFID‐based sensor for pipeline integrity monitoring in real‐time.…”

Section: Introductionmentioning

confidence: 99%

High‐Sensitivity RFID Sensor for Structural Health Monitoring

2023

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Structural health monitoring (SHM) is crucial for ensuring operational safety in applications like pipelines, tanks, aircraft, ships, and vehicles. Traditional embedded sensors have limitations due to expense and potential structural damage. A novel technology using radio frequency identification devices (RFID) offers wireless transmission of highly sensitive strain measurement data. The system features a thin, flexible sensor based on an inductance‐capacitance (LC) circuit with a parallel‐plate capacitance sensing unit. By incorporating tailored cracks in the capacitor electrodes, the sensor’s capacitor electrodes become highly piezoresistive, modifying electromagnetic wave penetration. This unconventional change in capacitance shifts the resonance frequency, resulting in a wireless strain sensor with a gauge factor of 50 for strains under 1%. The frequency shift is passively detected through an external readout system using simple frequency sweeping. This wire‐free, power‐free design allows easy integration into composites without compromising structural integrity. Experimental results demonstrate the cracked wireless strain sensor's ability to detect small strains within composites. This technology offers a cost‐effective, non‐destructive solution for accurate structural health monitoring.

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“…Ref. [ 39 ] proved that embedding passive wireless sensors into FRP is generally possible and usable for process monitoring of FRP production. In their experiments, they were able to measure local pressure during resin infusion in a VARI process, allowing for monitoring of the flow front progress.…”

Section: Introductionmentioning

confidence: 99%

Wireless, Material-Integrated Sensors for Strain and Temperature Measurement in Glass Fibre Reinforced Composites

Bertram

Brink²,

Lang

2023

Sensors

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Fiber reinforced plastics (FRP) offer huge potentials for energy efficient applications. Special care must be taken during both FRP fabrication and usage to ensure intended material properties and behavior. This paper presents a novel approach for the monitoring of the strain and temperature of glass fibre reinforced polymer (GFRP) materials in the context of both production process monitoring and structural health monitoring (SHM) applications. The sensor is designed to be integrated into GFRPs during the production process, and the sensor concept includes possibilities of automated placement during textile layup. To minimize sensor impact on GFRP integrity and to simplify vacuum setup and part handling, the sensor operates without the need for either wires or a battery. In the first sections of this work, sensor concept, design and prototype fabrication are presented. Subsequently, it is shown how the sensors can be used for flow front monitoring and cure estimation during GFRP production by measuring local resin temperature. The resulting specimens are then characterized regarding strain measurement capabilities, mechanical influence on the host component and overall system limitations. Average strain sensor accuracy is found to be ≤0.06 mm/m, while a maximum operation temperature of 126.9 °C and a maximum reading distance of 38 mm are measured. Based on a limited number of bending tests, no negative influence of sensor presence on breaking strength could be found. Possible applications include structural components, e.g., wind turbine blades or boat hulls.

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Wireless Piezoresistive Pressure Sensors Used for Quality Control in Glass Fiber Composite Laminates

Cited by 4 publications

References 10 publications

E5.4 - Material-integrated Temperature Sensors for Wireless Monitoring of Infusion and Curing in Composite Production

E5.4 - Material-integrated Temperature Sensors for Wireless Monitoring of Infusion and Curing in Composite Production

High‐Sensitivity RFID Sensor for Structural Health Monitoring

Wireless, Material-Integrated Sensors for Strain and Temperature Measurement in Glass Fibre Reinforced Composites

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