Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies
Composites reinforced with braided textiles exhibit high structural stability and excellent damage tolerance, making them very attractive for defence, aerospace, automotive and energy industries. Considering the real-life service environment, it is crucial to study a dynamic response of a composite...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/81161 http://hdl.handle.net/10220/50059 |
| _version_ | 1826115954712510464 |
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| author | Wang, Chen Chen, Zhong Silberschmidt, Vadim V. Roy, Anish |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Wang, Chen Chen, Zhong Silberschmidt, Vadim V. Roy, Anish |
| author_sort | Wang, Chen |
| collection | NTU |
| description | Composites reinforced with braided textiles exhibit high structural stability and excellent damage tolerance, making them very attractive for defence, aerospace, automotive and energy industries. Considering the real-life service environment, it is crucial to study a dynamic response of a composite structure and its energy-dissipation ability, especially under repeated low-velocity impacts. So, a series of drop-weight tests were carried out followed by X-ray computed micro-tomography to characterize damage morphology of braided composite specimens. Meanwhile, a multi-scale computational approach was explored and implemented as a user-defined-material subroutine (VUMAT) for ABAQUS/Explicit to capture main damage modes of a braided textile composite, while its delamination was modelled by employing cohesive-zone elements. Load- and energy-time curves were obtained both experimentally and numerically. The predicted levels of peak forces and absorbed energy were found to agree with the experimental data. An extent of delamination and damage accumulation in the braided composite was predicted numerically and analysed; it was found that material responses to repeated impacts had two types depending on the level of normalised impact energy. The presented modelling capability could contribute to design of braided composite structures for various applications. |
| first_indexed | 2024-10-01T04:03:32Z |
| format | Journal Article |
| id | ntu-10356/81161 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:03:32Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/811612023-07-14T15:57:07Z Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies Wang, Chen Chen, Zhong Silberschmidt, Vadim V. Roy, Anish School of Materials Science & Engineering Singapore Institute of Manufacturing Technology Engineering::Materials Braided Composite Repeated Low-velocity Impacts Composites reinforced with braided textiles exhibit high structural stability and excellent damage tolerance, making them very attractive for defence, aerospace, automotive and energy industries. Considering the real-life service environment, it is crucial to study a dynamic response of a composite structure and its energy-dissipation ability, especially under repeated low-velocity impacts. So, a series of drop-weight tests were carried out followed by X-ray computed micro-tomography to characterize damage morphology of braided composite specimens. Meanwhile, a multi-scale computational approach was explored and implemented as a user-defined-material subroutine (VUMAT) for ABAQUS/Explicit to capture main damage modes of a braided textile composite, while its delamination was modelled by employing cohesive-zone elements. Load- and energy-time curves were obtained both experimentally and numerically. The predicted levels of peak forces and absorbed energy were found to agree with the experimental data. An extent of delamination and damage accumulation in the braided composite was predicted numerically and analysed; it was found that material responses to repeated impacts had two types depending on the level of normalised impact energy. The presented modelling capability could contribute to design of braided composite structures for various applications. Accepted version 2019-10-01T04:15:58Z 2019-12-06T14:22:43Z 2019-10-01T04:15:58Z 2019-12-06T14:22:43Z 2018 Journal Article Wang, C., Chen, Z., Silberschmidt, V. V., & Roy, A. (2018). Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies. Composite Structures, 204, 256-267. doi:10.1016/j.compstruct.2018.07.084 0263-8223 https://hdl.handle.net/10356/81161 http://hdl.handle.net/10220/50059 10.1016/j.compstruct.2018.07.084 en Composite Structures © 2018 Elsevier Ltd. All rights reserved. This paper was published in Composite Structures and is made available with permission of Elsevier Ltd. 31 p. application/pdf |
| spellingShingle | Engineering::Materials Braided Composite Repeated Low-velocity Impacts Wang, Chen Chen, Zhong Silberschmidt, Vadim V. Roy, Anish Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title | Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title_full | Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title_fullStr | Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title_full_unstemmed | Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title_short | Damage accumulation in braided textiles-reinforced composites under repeated impacts : experimental and numerical studies |
| title_sort | damage accumulation in braided textiles reinforced composites under repeated impacts experimental and numerical studies |
| topic | Engineering::Materials Braided Composite Repeated Low-velocity Impacts |
| url | https://hdl.handle.net/10356/81161 http://hdl.handle.net/10220/50059 |
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