Glass fibre epoxy composite cure monitoring using parallel plate dielectric analysis in comparison with thermal and mechanical testing techniques

1998 ◽  
Vol 29 (7) ◽  
pp. 811-819 ◽  
Author(s):  
D. Abraham ◽  
R. McIlhagger
Keyword(s):  
Mechanical Testing ◽  
Glass Fibre ◽  
Parallel Plate ◽  
Epoxy Composite ◽  
Dielectric Analysis ◽  
Cure Monitoring ◽  
Testing Techniques

scholarly journals Effect of Multi-Impact on QIQH Carbon/Epoxy Composite Laminate

Proceedings ◽  
2018 ◽  
Vol 2 (8) ◽  
pp. 511
Author(s):  
Adadé Seyth Ezéckiel Amouzou ◽  
Olivier Sicot ◽  
Ameur Chettah ◽  
Shahram Aivazzadeh
Keyword(s):  
Composite Structures ◽  
Epoxy Composite ◽  
Impact Damage ◽  
Ultrasonic Control ◽  
Impact Tests ◽  
Post Impact ◽  
Testing Techniques ◽  
Force Time ◽  
The Relationship ◽  
Force Displacement

This work is motivated by increasingly used of composite structures under severe loading conditions. During their use, these materials are often subjected to impact as for example, in the aeronautical field the fall of hailstone on structure composites. In fact, the low energy traditional impact tests don’t allow to see the evolution of the damage and don’t permit also to compare the best tolerance to impact between different stratifications. The multi-impact tests made it possible to find a solution to this problem. In this work, multi-impact tests are performed on three carbon/epoxy stratifications. The final goal is to predict the durability of the composite structures during impact loading for their design. This study brings to light the response of multi-impact tests through force-time and force-displacement curves obtained experimentally. On the other hand, a parameter D has introduced following the experimental results. This made it possible to rank the three stratifications from their tolerance to multi-impact tests. To evaluate the post impact damage, ultrasonic testing techniques are used. The results allow to find the relationship between the damaged surface obtained by the ultrasonic control and the parameter D and to rank the three laminates configurations.

scholarly journals Investigation of using RFID for cure monitoring of glass fiber-reinforced plastics

2020 ◽  
Vol 14 (4) ◽  
pp. 499-507
Author(s):  
Marius Veigt ◽  
Elisabeth Hardi ◽  
Michael Koerdt ◽  
Axel S. Herrmann ◽  
Michael Freitag
Keyword(s):  
Glass Fiber ◽  
Dielectric Analysis ◽  
Rfid Technology ◽  
Fiber Reinforced ◽  
Response Frequency ◽  
Optimal Response ◽  
Cure Monitoring ◽  
Reinforced Plastics ◽  
Glass Fiber Reinforced ◽  
Fiber Reinforced Plastics

Abstract Fiber composite components play an important role in the turnaround in energy policy as well as in stopping global warming. Therefore, it is essential to improve the manufacturing efficiency of these components. RFID technology is spreading to digitize and organize processes in production and logistics more efficiently. Since cure monitoring is a crucial factor in the manufacturing of composite components, the question arises whether the RFID technology is applicable for cure monitoring. This paper presents two methods of how an into glass fiber-reinforced plastics integrated RFID transponder could monitor the curing. Following the assumption that the change in permittivity of the glass fiber-reinforced plastic during curing influence the RFID signal, experiments in a measuring chamber (low-interference environment) were conducted. It was investigated whether the optimal response frequency of the integrated RFID transponder changes and whether the received signal strength indicator (RSSI) changes at a specific frequency during curing. As a reference method, the dielectric analysis as a well-known method for cure monitoring was used and compared with the RFID measurements. The results indicate that the optimal response frequency remains constant but the RSSI increases and possess a very high linear correlation with the measurement of the dielectric analysis in a low-interference environment. Consequently, the RFID technology is applicable to monitor the curing of glass fiber-reinforced plastics by measuring the RSSI in a low-interference environment.

scholarly journals Dynamic Dielectric Analysis for Nondestructive Cure Monitoring and Process Control

1987 ◽  
pp. 1297-1306 ◽  
Author(s):  
D. E. Kranbuehl ◽  
S. E. Delos ◽  
M. S. Hoff ◽  
M. E. Whitham ◽  
L. W. Weller ◽  
...  
Keyword(s):  
Process Control ◽  
Dielectric Analysis ◽  
Cure Monitoring

UV resistibility of a nano-ZnO/glass fibre reinforced epoxy composite

2014 ◽  
Vol 56 ◽  
pp. 254-257 ◽  
Author(s):  
Tsz-ting Wong ◽  
Kin-tak Lau ◽  
Wai-yin Tam ◽  
Jinsong Leng ◽  
Julie A. Etches
Keyword(s):  
Glass Fibre ◽  
Epoxy Composite ◽  
Nano Zno ◽  
Glass Fibre Reinforced
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