Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion

This work is devoted to an experimental investigation of fatigue behavior of pultruded fiberglass tubes under uniaxial tension, compression and torsion. Static tests were carried out; a presence of postcritical deformation stage during torsion is noted. Regularities of inhomogeneous strain fields ev...

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Main Authors: Oleg Staroverov, Artur Mugatarov, Anastasia Sivtseva, Elena Strungar, Valeriy Wildemann, Aleksandr Elkin, Ivan Sergeichev
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2024-07-01
Series:Fracture and Structural Integrity
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Online Access:https://www.fracturae.com/index.php/fis/article/view/4908/4048
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author Oleg Staroverov
Artur Mugatarov
Anastasia Sivtseva
Elena Strungar
Valeriy Wildemann
Aleksandr Elkin
Ivan Sergeichev
author_facet Oleg Staroverov
Artur Mugatarov
Anastasia Sivtseva
Elena Strungar
Valeriy Wildemann
Aleksandr Elkin
Ivan Sergeichev
author_sort Oleg Staroverov
collection DOAJ
description This work is devoted to an experimental investigation of fatigue behavior of pultruded fiberglass tubes under uniaxial tension, compression and torsion. Static tests were carried out; a presence of postcritical deformation stage during torsion is noted. Regularities of inhomogeneous strain fields evolution are analyzed using digital image correlation method. Fatigue curves are built for four cyclic loading modes: tension-tension, compression-compression, tension-compression and torsion. An analysis of specimens' fractures is carried out, typical damaging mechanisms are revealed. Residual dynamic stiffness data is obtained and studied using a previously proposed fitting model. Results demonstrate model's high descriptive capability and its flexibility to describe two-staged and three-staged stiffness degradation curves. An influence of loading mode on a shape of these curves is found out. Model parameters' dependence on maximum stress value during the loading cycle is studied using the Pearson's correlation coefficient. The necessity of multiaxial fatigue behavior investigation of pultruded fiberglass tubes is concluded.
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publishDate 2024-07-01
publisher Gruppo Italiano Frattura
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series Fracture and Structural Integrity
spelling doaj-art-f09895b647ba4e7a83ac2adfd882807c2025-01-02T22:42:50ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932024-07-01186911512810.3221/IGF-ESIS.69.0910.3221/IGF-ESIS.69.09Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsionOleg StaroverovArtur MugatarovAnastasia SivtsevaElena StrungarValeriy WildemannAleksandr ElkinIvan SergeichevThis work is devoted to an experimental investigation of fatigue behavior of pultruded fiberglass tubes under uniaxial tension, compression and torsion. Static tests were carried out; a presence of postcritical deformation stage during torsion is noted. Regularities of inhomogeneous strain fields evolution are analyzed using digital image correlation method. Fatigue curves are built for four cyclic loading modes: tension-tension, compression-compression, tension-compression and torsion. An analysis of specimens' fractures is carried out, typical damaging mechanisms are revealed. Residual dynamic stiffness data is obtained and studied using a previously proposed fitting model. Results demonstrate model's high descriptive capability and its flexibility to describe two-staged and three-staged stiffness degradation curves. An influence of loading mode on a shape of these curves is found out. Model parameters' dependence on maximum stress value during the loading cycle is studied using the Pearson's correlation coefficient. The necessity of multiaxial fatigue behavior investigation of pultruded fiberglass tubes is concluded.https://www.fracturae.com/index.php/fis/article/view/4908/4048polymer compositepultruded fiberglass tubesfatiguedamage accumulationstiffness degradationdigital image correlation
spellingShingle Oleg Staroverov
Artur Mugatarov
Anastasia Sivtseva
Elena Strungar
Valeriy Wildemann
Aleksandr Elkin
Ivan Sergeichev
Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
Fracture and Structural Integrity
polymer composite
pultruded fiberglass tubes
fatigue
damage accumulation
stiffness degradation
digital image correlation
title Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
title_full Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
title_fullStr Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
title_full_unstemmed Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
title_short Fatigue behavior of pultruded fiberglass tubes under tension, compression and torsion
title_sort fatigue behavior of pultruded fiberglass tubes under tension compression and torsion
topic polymer composite
pultruded fiberglass tubes
fatigue
damage accumulation
stiffness degradation
digital image correlation
url https://www.fracturae.com/index.php/fis/article/view/4908/4048
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