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- W4223562015 endingPage "2016" @default.
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- W4223562015 abstract "The self-healing of micro and macro cracks is vital for eliminating defects such as damage progression and loss of strength in structures. In this study, a polyurethane (PU) based geometrically self-healing sandwich structure was developed. The geometric healing agent, PU resin and activator, were filled into macrocapsules, and these capsules were filled into the Aluminum (Al) honeycomb cells. Self-healing of structural strength, large holes and cracks in developed sandwich structures were investigated by performing quasi-static compression and impact penetration tests. The sandwich structure with a self-healing capsules-filled core was damaged by subjecting it to quasi-static and penetration impact loads, and the healing agents in the broken capsules were mixed. The damage in the specimen was removed by geometric self-healing. Liquid and air permeability tests were applied to the PU foam used as a healing agent. No liquid permeability was observed in the structure. In addition, significant reductions in air permeability were obtained. Scanning electron microscope images were used to explore the characterization of the PU foam structure cells." @default.
- W4223562015 created "2022-04-15" @default.
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- W4223562015 date "2022-04-12" @default.
- W4223562015 modified "2023-10-17" @default.
- W4223562015 title "A sandwich panel that autonomously repairs sudden large holes and defects for tankers and pipelines carrying hazardous matter" @default.
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- W4223562015 doi "https://doi.org/10.1177/14644207221092581" @default.
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