Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness
The key objective of this work is to highlight the effect of manufacturing-induced fiber waviness defects on the compressive failure of glass fiber-reinforced unidirectional specimens. For this purpose, in-plane, through-thickness waviness defects (with different waviness severities) are induced dur...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/88164 http://hdl.handle.net/10220/44564 |
| _version_ | 1811683571872563200 |
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| author | Nair, Swaroop Narayanan Dasari, Aravind Yue, Chee Yoon Narasimalu, Srikanth |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Nair, Swaroop Narayanan Dasari, Aravind Yue, Chee Yoon Narasimalu, Srikanth |
| author_sort | Nair, Swaroop Narayanan |
| collection | NTU |
| description | The key objective of this work is to highlight the effect of manufacturing-induced fiber waviness defects on the compressive failure of glass fiber-reinforced unidirectional specimens. For this purpose, in-plane, through-thickness waviness defects (with different waviness severities) are induced during the manufacturing of the laminate. Numerical and experimental results show that the compressive strength of the composites decreases as the severity of the waviness defects increases. A reduction of up to 75% is noted with a wave severity of 0.075. Optical and scanning electron microscopy observations of the failed specimens reveal that kink-bands are created in the wavy regions and lead to failure. |
| first_indexed | 2024-10-01T04:14:51Z |
| format | Journal Article |
| id | ntu-10356/88164 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:14:51Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/881642021-01-08T07:26:18Z Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness Nair, Swaroop Narayanan Dasari, Aravind Yue, Chee Yoon Narasimalu, Srikanth School of Materials Science & Engineering School of Mechanical and Aerospace Engineering Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) Wind Turbine Blades Defects The key objective of this work is to highlight the effect of manufacturing-induced fiber waviness defects on the compressive failure of glass fiber-reinforced unidirectional specimens. For this purpose, in-plane, through-thickness waviness defects (with different waviness severities) are induced during the manufacturing of the laminate. Numerical and experimental results show that the compressive strength of the composites decreases as the severity of the waviness defects increases. A reduction of up to 75% is noted with a wave severity of 0.075. Optical and scanning electron microscopy observations of the failed specimens reveal that kink-bands are created in the wavy regions and lead to failure. NRF (Natl Research Foundation, S’pore) Published version 2018-03-15T07:22:04Z 2019-12-06T16:57:27Z 2018-03-15T07:22:04Z 2019-12-06T16:57:27Z 2017 Journal Article Nair, S. N., Dasari, A., Yue, C. Y., & Narasimalu, S. (2017). Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness. Materials, 10(8), 909-. 1996-1944 https://hdl.handle.net/10356/88164 http://hdl.handle.net/10220/44564 10.3390/ma10080909 en Materials © 2017 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). 13 p. application/pdf |
| spellingShingle | Wind Turbine Blades Defects Nair, Swaroop Narayanan Dasari, Aravind Yue, Chee Yoon Narasimalu, Srikanth Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title | Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title_full | Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title_fullStr | Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title_full_unstemmed | Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title_short | Failure Behavior of Unidirectional Composites under Compression Loading: Effect of Fiber Waviness |
| title_sort | failure behavior of unidirectional composites under compression loading effect of fiber waviness |
| topic | Wind Turbine Blades Defects |
| url | https://hdl.handle.net/10356/88164 http://hdl.handle.net/10220/44564 |
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