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Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers
We compared the results of various microscale indentation creep (microcreep) measurements with macroscale tensile creep (macrocreep) measurements of three common polymers: high-density polyethylene (PE), polypropylene (PP), and polystyrene (PS). The main objective was to verify if the short-term mic...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866530/ https://www.ncbi.nlm.nih.gov/pubmed/36676572 http://dx.doi.org/10.3390/ma16020834 |
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author | Slouf, Miroslav Steinhart, Milos Nemecek, Pavel Gajdosova, Veronika Hodan, Jiri |
author_facet | Slouf, Miroslav Steinhart, Milos Nemecek, Pavel Gajdosova, Veronika Hodan, Jiri |
author_sort | Slouf, Miroslav |
collection | PubMed |
description | We compared the results of various microscale indentation creep (microcreep) measurements with macroscale tensile creep (macrocreep) measurements of three common polymers: high-density polyethylene (PE), polypropylene (PP), and polystyrene (PS). The main objective was to verify if the short-term microcreep experiments could predict long-term macrocreep behavior of the selected polymers, whose properties ranged from very soft and ductile (PE) to very hard and brittle (PS). The second objective was to compare several creep predictive schemes: the empirical power law model (PL) and several types of phenomenological elasto-visco-plastic models (EVP). In order to facilitate this task, we developed a universal program package named MCREEP, which fits PL and EVP models to both tensile and indentation creep data. All experimental results and theoretical predictions documented that: (i) regardless of the creep experiment type, both micro- and macrocreep resistance increased in the following order: PE < PP < PS, (ii) the short-term microcreep experiments could be used to predict qualitatively the long-term macrocreep behavior, and (iii) the simple empirical power law model yielded better predictions of long-term creep behavior than the more sophisticated elasto-visco-plastic models. |
format | Online Article Text |
id | pubmed-9866530 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98665302023-01-22 Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers Slouf, Miroslav Steinhart, Milos Nemecek, Pavel Gajdosova, Veronika Hodan, Jiri Materials (Basel) Article We compared the results of various microscale indentation creep (microcreep) measurements with macroscale tensile creep (macrocreep) measurements of three common polymers: high-density polyethylene (PE), polypropylene (PP), and polystyrene (PS). The main objective was to verify if the short-term microcreep experiments could predict long-term macrocreep behavior of the selected polymers, whose properties ranged from very soft and ductile (PE) to very hard and brittle (PS). The second objective was to compare several creep predictive schemes: the empirical power law model (PL) and several types of phenomenological elasto-visco-plastic models (EVP). In order to facilitate this task, we developed a universal program package named MCREEP, which fits PL and EVP models to both tensile and indentation creep data. All experimental results and theoretical predictions documented that: (i) regardless of the creep experiment type, both micro- and macrocreep resistance increased in the following order: PE < PP < PS, (ii) the short-term microcreep experiments could be used to predict qualitatively the long-term macrocreep behavior, and (iii) the simple empirical power law model yielded better predictions of long-term creep behavior than the more sophisticated elasto-visco-plastic models. MDPI 2023-01-15 /pmc/articles/PMC9866530/ /pubmed/36676572 http://dx.doi.org/10.3390/ma16020834 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 Slouf, Miroslav Steinhart, Milos Nemecek, Pavel Gajdosova, Veronika Hodan, Jiri Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title | Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title_full | Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title_fullStr | Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title_full_unstemmed | Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title_short | Correlations between Microscale Indentation Creep and Macroscale Tensile Creep of Polymers |
title_sort | correlations between microscale indentation creep and macroscale tensile creep of polymers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866530/ https://www.ncbi.nlm.nih.gov/pubmed/36676572 http://dx.doi.org/10.3390/ma16020834 |
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