Cargando…

Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading

In order to study the mechanical behavior and energy dissipation of architectural membrane materials under multistage cyclic loading, the deformation behavior, energy dissipation, and damage characteristics of four kinds of warp-knitted and woven polyvinyl chloride (PVC) membrane materials were anal...

Descripción completa

Detalles Bibliográficos
Autores principales: Guo, Shanshan, Wang, Linlin, Shao, Guangwei, Shao, Huiqi, Jiang, Jinhua, Chen, Nanliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099895/
https://www.ncbi.nlm.nih.gov/pubmed/35566833
http://dx.doi.org/10.3390/polym14091666
_version_ 1784706719472943104
author Guo, Shanshan
Wang, Linlin
Shao, Guangwei
Shao, Huiqi
Jiang, Jinhua
Chen, Nanliang
author_facet Guo, Shanshan
Wang, Linlin
Shao, Guangwei
Shao, Huiqi
Jiang, Jinhua
Chen, Nanliang
author_sort Guo, Shanshan
collection PubMed
description In order to study the mechanical behavior and energy dissipation of architectural membrane materials under multistage cyclic loading, the deformation behavior, energy dissipation, and damage characteristics of four kinds of warp-knitted and woven polyvinyl chloride (PVC) membrane materials were analyzed using multistage cyclic loading experiments. The results show that, compared with the uniaxial tensile strength, the peak values of the cyclic loading and unloading of the four material samples are lower in the warp direction but higher in the fill (weft) direction. Under multistage cyclic loading, the loading and unloading moduli of the warp knitting membrane increase with the increase in fabric density. At the same fabric density, the loading modulus and the unloading modulus are smaller than those of the warp knitting material. The total absorbed strain energy, elastic strain energy, and dissipation energy of the fill samples are higher than those of the warp samples at a low load level but lower than those at a high load level. PVC membrane materials’ use strength should be controlled below a 15% stress level under long-term external force loading. In the cyclic loading process, the four PVC membrane materials are viscoelastic–plastic, so it is reasonable to define the damage variable based on the accumulation of plastic deformation.
format Online
Article
Text
id pubmed-9099895
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-90998952022-05-14 Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading Guo, Shanshan Wang, Linlin Shao, Guangwei Shao, Huiqi Jiang, Jinhua Chen, Nanliang Polymers (Basel) Article In order to study the mechanical behavior and energy dissipation of architectural membrane materials under multistage cyclic loading, the deformation behavior, energy dissipation, and damage characteristics of four kinds of warp-knitted and woven polyvinyl chloride (PVC) membrane materials were analyzed using multistage cyclic loading experiments. The results show that, compared with the uniaxial tensile strength, the peak values of the cyclic loading and unloading of the four material samples are lower in the warp direction but higher in the fill (weft) direction. Under multistage cyclic loading, the loading and unloading moduli of the warp knitting membrane increase with the increase in fabric density. At the same fabric density, the loading modulus and the unloading modulus are smaller than those of the warp knitting material. The total absorbed strain energy, elastic strain energy, and dissipation energy of the fill samples are higher than those of the warp samples at a low load level but lower than those at a high load level. PVC membrane materials’ use strength should be controlled below a 15% stress level under long-term external force loading. In the cyclic loading process, the four PVC membrane materials are viscoelastic–plastic, so it is reasonable to define the damage variable based on the accumulation of plastic deformation. MDPI 2022-04-20 /pmc/articles/PMC9099895/ /pubmed/35566833 http://dx.doi.org/10.3390/polym14091666 Text en © 2022 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
Guo, Shanshan
Wang, Linlin
Shao, Guangwei
Shao, Huiqi
Jiang, Jinhua
Chen, Nanliang
Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title_full Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title_fullStr Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title_full_unstemmed Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title_short Mechanical Behavior and Energy Dissipation of Woven and Warp-Knitted Pvc Membrane Materials under Multistage Cyclic Loading
title_sort mechanical behavior and energy dissipation of woven and warp-knitted pvc membrane materials under multistage cyclic loading
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099895/
https://www.ncbi.nlm.nih.gov/pubmed/35566833
http://dx.doi.org/10.3390/polym14091666
work_keys_str_mv AT guoshanshan mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading
AT wanglinlin mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading
AT shaoguangwei mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading
AT shaohuiqi mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading
AT jiangjinhua mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading
AT chennanliang mechanicalbehaviorandenergydissipationofwovenandwarpknittedpvcmembranematerialsundermultistagecyclicloading