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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Data files
Data files
- Dielectric_Breakdown_Strength_of_Unidirectional_Fiber_Composites_Fiber_Orientation_and_Size_Effects.xlsx75.36 KiB
Documentation files
Documentation files
Citation and access
Citation and access
Data access level:
Creator/Principal investigator(s):
- Ishara A.U. Ranathunga Arachchige – Luleå University of Technology - Department of Engineering Sciences and Mathematics
Research principal:
Data contains personal data:
No
Citation:
Language:
Method and outcome
Method and outcome
Data format/data structure:
Data collection - Laboratory experiment
Data collection - Laboratory experiment
Mode of collection:
Laboratory experiment
Description of the mode of collection:
Testing was performed in a Phenix 6CC100-5/D149 under alternating voltage according to ASTM D149-20. 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. Specimens 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 where a clearly carbonized breakdown path in the material could not be visually identified after the first test were tested a second time.
Data collector:
- Luleå University of Technology
Opens a new window at ror.org.
ROR
Source of the data:
- Research data
Instrument
Instrument
Name:
Phenix 6CC100-5/D149
Description of the instrument:
Equipment for dielectric strength testing with alternating voltage.
Administrative information
Administrative information
Responsible department/unit:
Department of Engineering Sciences and Mathematics
Funding
Funding
Funding agency:
- European Regional Development Fund (ERDF)/Swedish Agency for Economic and Regional Growth
Opens a new window at ror.org.
ROR
Award number:
20359797
Award title:
Multi-functional optimization of electrically insulating composites
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).
