Data for: Dielectric Breakdown Strength of Unidirectional Fiber Composites: Weibull Analysis of Fiber Orientation and Size Effects
https://doi.org/10.5878/n7kd-dh47
The dataset contains experimental data from dielectric strength testing of unidirectional glass fiber–epoxy composites. The composite laminates were manufactured by pressing prepregs and exhibited low porosity. Testing was performed in a Phenix 6CC100-5/D149 under alternating voltage according to ASTM D149-20. Electrodes and specimen were submerged in transformer oil to prevent surface flashover. Flat, parallel electrodes covering the entire specimens were used to apply a continuously increasing potential difference, corresponding to an electric field increase of 0.25 (kV/mm)/s. Samples with varying fiber angles relative to the applied electric field (0°, 30°, 45°, 60°, 90°), electrode gaps (2 mm, 4 mm, 8 mm, 16 mm), and cross-sectional areas (30 mm², 50 mm², 70 mm²) were tested. Specimens for which a clearly carbonized breakdown path in the material could not be visually identified after the first test were subjected to a second test.
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Creator/Principal investigator(s):
- Ishara A.U. Ranathunga Arachchige – Luleå tekniska universitet - Institutionen för teknikvetenskap och matematik
Research principal:
Data contains personal data:
No
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Method and outcome
Method and outcome
Data format/data structure:
Data collection - Laboratorieexperiment
Data collection - Laboratorieexperiment
Mode of collection:
Laboratorieexperiment
Description of the mode of collection:
Provningen har utförts i en Phenix 6CC100-5/D149 under växelspänning enligt standard ASTM D149-20. Plana, parallella elektroder, täckande hela provkropparna, har använts för att lägga på en konstant ökande potentialskillnad, motsvarande en ökning av det elektriska fältet med 0.25 (kV/mm)/s. Provkroppar med varierande fibervinkel i förhållande till pålagt elektriskt fält (0°, 30°, 45°, 60°, 90°), elektrodavstånd (2 mm, 4 mm, 8 mm, 16 mm) och tvärsnittsarea (30 mm^2, 50 mm^2, 70 mm^2) har testats. Provkroppar där ett tydligt förkolnat genomslag i materialet inte kunde urskiljas visuellt efter första testet har testats en andra gång.
Data collector:
- Luleå tekniska Universitet
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ROR
Source of the data:
- Forskningsdata
Instrument
Instrument
Name:
Phenix 6CC100-5/D149
Description of the instrument:
Utrustning för testning av dielektrisk hållfasthet under växelspänning.
Administrative information
Administrative information
Responsible department/unit:
Department of Engineering Sciences and Mathematics
Funding
Funding
Funding agency:
- Europeiska regionala utvecklingsfonden (ERUF)/Tillväxtverket
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ROR
Award number:
20359797
Award title:
Multifunktionell optimering för elektrisk isolerande kompositer
Funding information:
This research is financially supported by the European Regional Development Fund and the Green Transition North-smart energy systems-project (GTN-SE) (no.20359797).
