Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring

Fatigue of filament wound materials was investigated using Digital Image Correlation DIC monitoring every 50th cycle of a high cycle fatigue test of a split disk ring sample. The ring was cut from a filament wound glass fiber reinforced polymer pressure vessel and had a hole. The strain field redist...

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Autores principales: Hugaas Eivind, Echtermeyer Andreas T.
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Lenguaje:EN
Publicado: De Gruyter 2021
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Acceso en línea:https://doaj.org/article/e4af5589d02e417a8abe53a58083a37f
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spelling oai:doaj.org-article:e4af5589d02e417a8abe53a58083a37f2021-12-05T14:10:46ZFilament wound composite fatigue mechanisms investigated with full field DIC strain monitoring2391-543910.1515/eng-2021-0041https://doaj.org/article/e4af5589d02e417a8abe53a58083a37f2021-01-01T00:00:00Zhttps://doi.org/10.1515/eng-2021-0041https://doaj.org/toc/2391-5439Fatigue of filament wound materials was investigated using Digital Image Correlation DIC monitoring every 50th cycle of a high cycle fatigue test of a split disk ring sample. The ring was cut from a filament wound glass fiber reinforced polymer pressure vessel and had a hole. The strain field redistributed over time, lowering and moving strain concentrations. The redistributive behavior was most extensive in areas that later developed local fiber failure, which soon led to catastrophic failure. Microscopy was carried out on partially fatigued material. Damage evolved as matrix cracks and matrix splitting of groups of fibers and complete debonding of single fibers. This occurred at borders of voids and matrix cracks, easing progressive fiber failure. It was concluded that fatigue in filament wound composites has an extensive matrix damage phase before final failure. Fibers could locally withstand strains close to and above the static failure strain for considerable number of cycles if little local strain field redistribution was observed. The used method was able to detect changes in the strain fields that preceded catastrophic failure. It was concluded that DIC combined with the post processing methods presented may serve as a valuable tool for structural integrity monitoring of composite pressure vessels over time.Hugaas EivindEchtermeyer Andreas T.De Gruyterarticlecompositesfilament windingfatiguedigital image correlationprogressive damagestrain fieldsEngineering (General). Civil engineering (General)TA1-2040ENOpen Engineering, Vol 11, Iss 1, Pp 401-413 (2021)
institution DOAJ
collection DOAJ
language EN
topic composites
filament winding
fatigue
digital image correlation
progressive damage
strain fields
Engineering (General). Civil engineering (General)
TA1-2040
spellingShingle composites
filament winding
fatigue
digital image correlation
progressive damage
strain fields
Engineering (General). Civil engineering (General)
TA1-2040
Hugaas Eivind
Echtermeyer Andreas T.
Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
description Fatigue of filament wound materials was investigated using Digital Image Correlation DIC monitoring every 50th cycle of a high cycle fatigue test of a split disk ring sample. The ring was cut from a filament wound glass fiber reinforced polymer pressure vessel and had a hole. The strain field redistributed over time, lowering and moving strain concentrations. The redistributive behavior was most extensive in areas that later developed local fiber failure, which soon led to catastrophic failure. Microscopy was carried out on partially fatigued material. Damage evolved as matrix cracks and matrix splitting of groups of fibers and complete debonding of single fibers. This occurred at borders of voids and matrix cracks, easing progressive fiber failure. It was concluded that fatigue in filament wound composites has an extensive matrix damage phase before final failure. Fibers could locally withstand strains close to and above the static failure strain for considerable number of cycles if little local strain field redistribution was observed. The used method was able to detect changes in the strain fields that preceded catastrophic failure. It was concluded that DIC combined with the post processing methods presented may serve as a valuable tool for structural integrity monitoring of composite pressure vessels over time.
format article
author Hugaas Eivind
Echtermeyer Andreas T.
author_facet Hugaas Eivind
Echtermeyer Andreas T.
author_sort Hugaas Eivind
title Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
title_short Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
title_full Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
title_fullStr Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
title_full_unstemmed Filament wound composite fatigue mechanisms investigated with full field DIC strain monitoring
title_sort filament wound composite fatigue mechanisms investigated with full field dic strain monitoring
publisher De Gruyter
publishDate 2021
url https://doaj.org/article/e4af5589d02e417a8abe53a58083a37f
work_keys_str_mv AT hugaaseivind filamentwoundcompositefatiguemechanismsinvestigatedwithfullfielddicstrainmonitoring
AT echtermeyerandreast filamentwoundcompositefatiguemechanismsinvestigatedwithfullfielddicstrainmonitoring
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