Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
نویسندگان
چکیده
Abstract Fatigue of filament wound materials was investigated using Digital Image Correlation DIC monitoring every 50 th cycle a high fatigue test split disk ring sample. The cut from glass fiber reinforced polymer pressure vessel and had hole. strain field redistributed over time, lowering moving concentrations. redistributive behavior most extensive in areas that later developed local failure, which soon led to catastrophic failure. Microscopy carried out on partially fatigued material. Damage evolved as matrix cracks splitting groups fibers complete debonding single fibers. This occurred at borders voids cracks, easing progressive It concluded composites has an damage phase before final Fibers could locally withstand strains close above the static failure for considerable number cycles if little redistribution observed. used method able detect changes fields preceded combined with post processing methods presented may serve valuable tool structural integrity composite vessels time.
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ژورنال
عنوان ژورنال: Open Engineering
سال: 2021
ISSN: ['2391-5439']
DOI: https://doi.org/10.1515/eng-2021-0041