Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis
This paper aims to study the tensile behavior of a woven [0/90]<sub>7</sub> hemp/Elium composite after three different conditionings: “Ambient storage”, “Saturated at 60 °C” and “15 wet/dry cycles”. Instrumented repeated progressive tensile loading tests were carried out and showed an un...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Micro |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-8023/3/2/33 |
| _version_ | 1797593550817329152 |
|---|---|
| author | Quentin Drouhet Fabienne Touchard Laurence Chocinski-Arnault |
| author_facet | Quentin Drouhet Fabienne Touchard Laurence Chocinski-Arnault |
| author_sort | Quentin Drouhet |
| collection | DOAJ |
| description | This paper aims to study the tensile behavior of a woven [0/90]<sub>7</sub> hemp/Elium composite after three different conditionings: “Ambient storage”, “Saturated at 60 °C” and “15 wet/dry cycles”. Instrumented repeated progressive tensile loading tests were carried out and showed an unexpected increase in the secant modulus for the aged samples at the end of the test. An in-situ micro-CT tensile test was then performed on a “15 wet/dry cycles” aged sample. The analysis of the tomographic images showed the damage development with interfacial debonding and matrix cracks in the specimen volume, and also the decrease in the curvature radius of the warp yarns during tensile loading facilitated by the plasticization of the resin. Finite element calculations were thus performed and demonstrated that the increase in the modulus is directly linked to the straightening of warp yarns, showing that the evolution of the modulus on a macroscopic scale can be explained by the deformations of the yarns on a microscopic level. These results allow us to better understand the mechanical behavior and the damage mechanisms that occur in biocomposites during tensile testing after water aging. |
| first_indexed | 2024-03-11T02:09:49Z |
| format | Article |
| id | doaj.art-f00eda0d5d2b45e5bb0040a3930e0c4f |
| institution | Directory Open Access Journal |
| issn | 2673-8023 |
| language | English |
| last_indexed | 2024-03-11T02:09:49Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micro |
| spelling | doaj.art-f00eda0d5d2b45e5bb0040a3930e0c4f2023-11-18T11:37:52ZengMDPI AGMicro2673-80232023-05-013249650910.3390/micro3020033Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical AnalysisQuentin Drouhet0Fabienne Touchard1Laurence Chocinski-Arnault2Institut Pprime, CNRS-ISAE-ENSMA-Université de Poitiers UPR 3346, Département de Physique et Mécanique des Matériaux, 1 Avenue Clément Ader, 86360 Chasseneuil-du-Poitou, FranceInstitut Pprime, CNRS-ISAE-ENSMA-Université de Poitiers UPR 3346, Département de Physique et Mécanique des Matériaux, 1 Avenue Clément Ader, 86360 Chasseneuil-du-Poitou, FranceInstitut Pprime, CNRS-ISAE-ENSMA-Université de Poitiers UPR 3346, Département de Physique et Mécanique des Matériaux, 1 Avenue Clément Ader, 86360 Chasseneuil-du-Poitou, FranceThis paper aims to study the tensile behavior of a woven [0/90]<sub>7</sub> hemp/Elium composite after three different conditionings: “Ambient storage”, “Saturated at 60 °C” and “15 wet/dry cycles”. Instrumented repeated progressive tensile loading tests were carried out and showed an unexpected increase in the secant modulus for the aged samples at the end of the test. An in-situ micro-CT tensile test was then performed on a “15 wet/dry cycles” aged sample. The analysis of the tomographic images showed the damage development with interfacial debonding and matrix cracks in the specimen volume, and also the decrease in the curvature radius of the warp yarns during tensile loading facilitated by the plasticization of the resin. Finite element calculations were thus performed and demonstrated that the increase in the modulus is directly linked to the straightening of warp yarns, showing that the evolution of the modulus on a macroscopic scale can be explained by the deformations of the yarns on a microscopic level. These results allow us to better understand the mechanical behavior and the damage mechanisms that occur in biocomposites during tensile testing after water aging.https://www.mdpi.com/2673-8023/3/2/33micro-tomographyplant fibersdamage mechanismsin-situ testingfinite element analysisimage segmentation |
| spellingShingle | Quentin Drouhet Fabienne Touchard Laurence Chocinski-Arnault Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis Micro micro-tomography plant fibers damage mechanisms in-situ testing finite element analysis image segmentation |
| title | Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis |
| title_full | Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis |
| title_fullStr | Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis |
| title_full_unstemmed | Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis |
| title_short | Tensile Behavior of [0/90]<sub>7</sub> Hemp/Elium Biocomposites after Water Aging: In-Situ Micro-CT Testing and Numerical Analysis |
| title_sort | tensile behavior of 0 90 sub 7 sub hemp elium biocomposites after water aging in situ micro ct testing and numerical analysis |
| topic | micro-tomography plant fibers damage mechanisms in-situ testing finite element analysis image segmentation |
| url | https://www.mdpi.com/2673-8023/3/2/33 |
| work_keys_str_mv | AT quentindrouhet tensilebehaviorof090sub7subhempeliumbiocompositesafterwateraginginsitumicrocttestingandnumericalanalysis AT fabiennetouchard tensilebehaviorof090sub7subhempeliumbiocompositesafterwateraginginsitumicrocttestingandnumericalanalysis AT laurencechocinskiarnault tensilebehaviorof090sub7subhempeliumbiocompositesafterwateraginginsitumicrocttestingandnumericalanalysis |