Free-edge effect on the tensile properties of 3D woven composites
Free-edge effect is one of the factors affecting the mechanical properties of three-dimensional woven composites under tensile load. However, current research is relatively poorly understood regarding the effect of free-edge on the stiffness and strength of the material. This paper aims at examining...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-08-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2023.1240638/full |
| _version_ | 1797754528183877632 |
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| author | Zengwen Wu Ce Li Feng Liao Gang Liu Shan Zeng |
| author_facet | Zengwen Wu Ce Li Feng Liao Gang Liu Shan Zeng |
| author_sort | Zengwen Wu |
| collection | DOAJ |
| description | Free-edge effect is one of the factors affecting the mechanical properties of three-dimensional woven composites under tensile load. However, current research is relatively poorly understood regarding the effect of free-edge on the stiffness and strength of the material. This paper aims at examining the influence of free-edge effect on the mechanical properties of 3D woven composites under tension through experimental and simulation methods. The three-dimensional digital image correlation (DIC) technique is used to collect the full-field strains on the specimen surface during the test, and the stress-strain differences in different regions in the width direction are analyzed, and the overlap of the curves in each region is found to be high, indicating that the boundary effect has a small influence on the tensile properties of 3D woven composites. Experimental studies are conducted on specimens of different widths (within the range of 15–20 mm), and the results indicate that the differences in mechanical properties of 3D woven composites under tension loading in this width range are not significant. A progressive damage finite element model is developed for calculation and compared with experimental results. It is found that the tensile properties of the material decreased when the width of the specimen is less than twice the size of the single cell. This study can provide certain data support for the study of the mechanical properties of 3D woven composites and enable the subsequent more in-depth study to provide a certain foundation. |
| first_indexed | 2024-03-12T17:34:41Z |
| format | Article |
| id | doaj.art-8925e27fa6cd48058535710a96d9fb8b |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-03-12T17:34:41Z |
| publishDate | 2023-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-8925e27fa6cd48058535710a96d9fb8b2023-08-04T12:19:13ZengFrontiers Media S.A.Frontiers in Materials2296-80162023-08-011010.3389/fmats.2023.12406381240638Free-edge effect on the tensile properties of 3D woven compositesZengwen Wu0Ce Li1Feng Liao2Gang Liu3Shan Zeng4Robotics Institute, Ningbo University of Technology, Ningbo, ChinaJiangxi Key Laboratory of Disaster Prevention-Mitigation and Emergency Management, East China Jiaotong University, Nanchang, ChinaChina Aerodynamics Research and Development Center, Low Speed Aerodynamics Institute, Mianyang, ChinaJiangxi Key Laboratory of Disaster Prevention-Mitigation and Emergency Management, East China Jiaotong University, Nanchang, ChinaSchool of Aircraft Engineering, Nanchang Hangkong University, Nanchang, ChinaFree-edge effect is one of the factors affecting the mechanical properties of three-dimensional woven composites under tensile load. However, current research is relatively poorly understood regarding the effect of free-edge on the stiffness and strength of the material. This paper aims at examining the influence of free-edge effect on the mechanical properties of 3D woven composites under tension through experimental and simulation methods. The three-dimensional digital image correlation (DIC) technique is used to collect the full-field strains on the specimen surface during the test, and the stress-strain differences in different regions in the width direction are analyzed, and the overlap of the curves in each region is found to be high, indicating that the boundary effect has a small influence on the tensile properties of 3D woven composites. Experimental studies are conducted on specimens of different widths (within the range of 15–20 mm), and the results indicate that the differences in mechanical properties of 3D woven composites under tension loading in this width range are not significant. A progressive damage finite element model is developed for calculation and compared with experimental results. It is found that the tensile properties of the material decreased when the width of the specimen is less than twice the size of the single cell. This study can provide certain data support for the study of the mechanical properties of 3D woven composites and enable the subsequent more in-depth study to provide a certain foundation.https://www.frontiersin.org/articles/10.3389/fmats.2023.1240638/full3D woven compositesdamageedge-effecttensionfailure |
| spellingShingle | Zengwen Wu Ce Li Feng Liao Gang Liu Shan Zeng Free-edge effect on the tensile properties of 3D woven composites Frontiers in Materials 3D woven composites damage edge-effect tension failure |
| title | Free-edge effect on the tensile properties of 3D woven composites |
| title_full | Free-edge effect on the tensile properties of 3D woven composites |
| title_fullStr | Free-edge effect on the tensile properties of 3D woven composites |
| title_full_unstemmed | Free-edge effect on the tensile properties of 3D woven composites |
| title_short | Free-edge effect on the tensile properties of 3D woven composites |
| title_sort | free edge effect on the tensile properties of 3d woven composites |
| topic | 3D woven composites damage edge-effect tension failure |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2023.1240638/full |
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