Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates
The damage arising in the manufacturing or service operation can result in the degradation in mechanical properties or even structural failure in composite laminates. This work investigated the flexural behaviour of [+45/−45/0]2s carbon fibre reinforced polymer laminates with the artificially embedd...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150730 |
| _version_ | 1826116341432582144 |
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| author | Liu, Zhe Li, Peifeng Srikanth, Narasimalu |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Liu, Zhe Li, Peifeng Srikanth, Narasimalu |
| author_sort | Liu, Zhe |
| collection | NTU |
| description | The damage arising in the manufacturing or service operation can result in the degradation in mechanical properties or even structural failure in composite laminates. This work investigated the flexural behaviour of [+45/−45/0]2s carbon fibre reinforced polymer laminates with the artificially embedded delamination (pre-delamination) at different interfaces. After static flexural experiments, the internal 3D damage including various failure modes was characterised and quantified in the X-ray microtomography. It was found that regardless of the pre-delamination, similar in-ply (fibre failure, matrix cracking and fibre/matrix debonding) and interlaminar (delamination) failure modes occur dominantly in the outer ply group of the compression zone in all the laminates. However, the pre-delamination and its location have the influence on both the distribution and size of the 3D damage, and thus on the flexural properties. The flexural strength that is reduced by pre-delamination is the most (least) sensitive to the pre-delamination embedded at the third (ninth) interface. |
| first_indexed | 2024-10-01T04:10:07Z |
| format | Journal Article |
| id | ntu-10356/150730 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:10:07Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1507302021-06-08T03:47:43Z Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates Liu, Zhe Li, Peifeng Srikanth, Narasimalu School of Mechanical and Aerospace Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Mechanical engineering Laminates Mechanical Properties The damage arising in the manufacturing or service operation can result in the degradation in mechanical properties or even structural failure in composite laminates. This work investigated the flexural behaviour of [+45/−45/0]2s carbon fibre reinforced polymer laminates with the artificially embedded delamination (pre-delamination) at different interfaces. After static flexural experiments, the internal 3D damage including various failure modes was characterised and quantified in the X-ray microtomography. It was found that regardless of the pre-delamination, similar in-ply (fibre failure, matrix cracking and fibre/matrix debonding) and interlaminar (delamination) failure modes occur dominantly in the outer ply group of the compression zone in all the laminates. However, the pre-delamination and its location have the influence on both the distribution and size of the 3D damage, and thus on the flexural properties. The flexural strength that is reduced by pre-delamination is the most (least) sensitive to the pre-delamination embedded at the third (ninth) interface. Ministry of Defence (MINDEF) Nanyang Technological University This work was financially supported by the Ministry of Defence Singapore – Nanyang Technological University (NTU) Joint Applied R&D Cooperation (JPP) Programme (Grant No.: MINDEF-NTU-JPP/12/01/02). ZL acknowledges the NTU Interdisciplinary Graduate School Research Student Scholarship. 2021-06-08T03:47:42Z 2021-06-08T03:47:42Z 2019 Journal Article Liu, Z., Li, P. & Srikanth, N. (2019). Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates. Composite Structures, 209, 93-102. https://dx.doi.org/10.1016/j.compstruct.2018.10.049 0263-8223 https://hdl.handle.net/10356/150730 10.1016/j.compstruct.2018.10.049 2-s2.0-85055751792 209 93 102 en MINDEF-NTU-JPP/12/01/02 Composite Structures © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Laminates Mechanical Properties Liu, Zhe Li, Peifeng Srikanth, Narasimalu Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title | Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title_full | Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title_fullStr | Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title_full_unstemmed | Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title_short | Effect of delamination on the flexural response of [+45/−45/0]2s carbon fibre reinforced polymer laminates |
| title_sort | effect of delamination on the flexural response of 45 45 0 2s carbon fibre reinforced polymer laminates |
| topic | Engineering::Mechanical engineering Laminates Mechanical Properties |
| url | https://hdl.handle.net/10356/150730 |
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