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Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading

Composite structures during an operation are subjected to various types of external loading (impact, vibration, cyclic, etc.), which may lead to a decrease in mechanical properties. Previously, many experimental investigations of the mechanical behavior of composites under uniaxial cyclic loading we...

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Autores principales: Wildemann, Valeriy, Staroverov, Oleg, Strungar, Elena, Mugatarov, Artur, Kuchukov, Artur
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180879/
https://www.ncbi.nlm.nih.gov/pubmed/37177165
http://dx.doi.org/10.3390/polym15092017
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author Wildemann, Valeriy
Staroverov, Oleg
Strungar, Elena
Mugatarov, Artur
Kuchukov, Artur
author_facet Wildemann, Valeriy
Staroverov, Oleg
Strungar, Elena
Mugatarov, Artur
Kuchukov, Artur
author_sort Wildemann, Valeriy
collection PubMed
description Composite structures during an operation are subjected to various types of external loading (impact, vibration, cyclic, etc.), which may lead to a decrease in mechanical properties. Previously, many experimental investigations of the mechanical behavior of composites under uniaxial cyclic loading were carried out. Acquisition of new data on the reduction of composite materials’ mechanical characteristics under conditions of multiaxial cyclic loading, as well as verification of existing models for calculation of the residual properties, are relevant. Therefore, this work is devoted to the experimental investigation of the mechanical behavior of fiberglass tubes under proportional cyclic loading. Static and fatigue tests were carried out under tension with torsion conditions. Inhomogeneous strain fields were obtained using a non-contact optical video system VIC-3D. The structural damage accumulation processes were analyzed by an AMSY-6 acoustic emission signals recording system. Surface defects were determined using a DinoLite microscope. Residual dynamic elastic modules were calculated during fatigue tests, and fatigue sensitivity curves were built. Data was approximated using various models, and their high descriptive capability was revealed. Damage accumulation stages were determined. The dependence of the models’ parameters on a stress state were observed. It was concluded that multiaxial cyclic loading leads to a significant decrease in mechanical properties, which should be taken into account in composite structure design.
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spelling pubmed-101808792023-05-13 Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading Wildemann, Valeriy Staroverov, Oleg Strungar, Elena Mugatarov, Artur Kuchukov, Artur Polymers (Basel) Article Composite structures during an operation are subjected to various types of external loading (impact, vibration, cyclic, etc.), which may lead to a decrease in mechanical properties. Previously, many experimental investigations of the mechanical behavior of composites under uniaxial cyclic loading were carried out. Acquisition of new data on the reduction of composite materials’ mechanical characteristics under conditions of multiaxial cyclic loading, as well as verification of existing models for calculation of the residual properties, are relevant. Therefore, this work is devoted to the experimental investigation of the mechanical behavior of fiberglass tubes under proportional cyclic loading. Static and fatigue tests were carried out under tension with torsion conditions. Inhomogeneous strain fields were obtained using a non-contact optical video system VIC-3D. The structural damage accumulation processes were analyzed by an AMSY-6 acoustic emission signals recording system. Surface defects were determined using a DinoLite microscope. Residual dynamic elastic modules were calculated during fatigue tests, and fatigue sensitivity curves were built. Data was approximated using various models, and their high descriptive capability was revealed. Damage accumulation stages were determined. The dependence of the models’ parameters on a stress state were observed. It was concluded that multiaxial cyclic loading leads to a significant decrease in mechanical properties, which should be taken into account in composite structure design. MDPI 2023-04-24 /pmc/articles/PMC10180879/ /pubmed/37177165 http://dx.doi.org/10.3390/polym15092017 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wildemann, Valeriy
Staroverov, Oleg
Strungar, Elena
Mugatarov, Artur
Kuchukov, Artur
Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title_full Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title_fullStr Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title_full_unstemmed Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title_short Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading
title_sort mechanical properties degradation of fiberglass tubes during biaxial proportional cyclic loading
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180879/
https://www.ncbi.nlm.nih.gov/pubmed/37177165
http://dx.doi.org/10.3390/polym15092017
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