Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens
The biaxial loading properties of carbon-fiber-reinforced polymer (CFRP) are critical for evaluating the performance of composite structures under the complex stress state. There are currently no standardized specimens for the CFRP biaxial experiments. This work developed a new design criterion for...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/163156 |
| _version_ | 1811688831345229824 |
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| author | Zhang, Xiaowen Zhu, Haiyang Lv, Zhixing Zhao, Xiangrun Wang, Junwei Wang, Qi |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhang, Xiaowen Zhu, Haiyang Lv, Zhixing Zhao, Xiangrun Wang, Junwei Wang, Qi |
| author_sort | Zhang, Xiaowen |
| collection | NTU |
| description | The biaxial loading properties of carbon-fiber-reinforced polymer (CFRP) are critical for evaluating the performance of composite structures under the complex stress state. There are currently no standardized specimens for the CFRP biaxial experiments. This work developed a new design criterion for the cruciform specimen coupled with the Hashin criterion. The finite element analysis was conducted to investigate the effect of geometric parameters on the stress distribution in the test area. The embedded continuous laying method (ECLM) was proposed to achieve the thinning of the center of the test region without introducing defects. The manufacturing quality of the cruciform specimens was verified by the ultrasonic C-scanning test. The biaxial test platform consisting of the biaxial loading system, digital image correlation (DIC) system, strain electrical measurement system, and acoustic emission detection system was constructed. The biaxial tensile tests under different biaxial loading ratios were conducted. The results showed that the biaxial failure efficiently occurred in the test area of the cruciform specimens designed and manufactured in this paper. The failure modes and morphology were characterized using macro/microscopic experimental techniques. The biaxial failure envelope was obtained. The results can be used to guide the design of composite structures under biaxial stress. |
| first_indexed | 2024-10-01T05:38:27Z |
| format | Journal Article |
| id | ntu-10356/163156 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:38:27Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1631562022-11-25T05:02:30Z Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens Zhang, Xiaowen Zhu, Haiyang Lv, Zhixing Zhao, Xiangrun Wang, Junwei Wang, Qi School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Carbon-Fiber-Reinforced Polymer Biaxial Testing The biaxial loading properties of carbon-fiber-reinforced polymer (CFRP) are critical for evaluating the performance of composite structures under the complex stress state. There are currently no standardized specimens for the CFRP biaxial experiments. This work developed a new design criterion for the cruciform specimen coupled with the Hashin criterion. The finite element analysis was conducted to investigate the effect of geometric parameters on the stress distribution in the test area. The embedded continuous laying method (ECLM) was proposed to achieve the thinning of the center of the test region without introducing defects. The manufacturing quality of the cruciform specimens was verified by the ultrasonic C-scanning test. The biaxial test platform consisting of the biaxial loading system, digital image correlation (DIC) system, strain electrical measurement system, and acoustic emission detection system was constructed. The biaxial tensile tests under different biaxial loading ratios were conducted. The results showed that the biaxial failure efficiently occurred in the test area of the cruciform specimens designed and manufactured in this paper. The failure modes and morphology were characterized using macro/microscopic experimental techniques. The biaxial failure envelope was obtained. The results can be used to guide the design of composite structures under biaxial stress. Published version This work was supported by the National Key Research and Development Program (2021YFE0115400), China, and the Cultivation of Interdisciplinary Research Platform of Dalian University of Technology (2020-DG-02-ZWJ), China. 2022-11-25T05:02:30Z 2022-11-25T05:02:30Z 2022 Journal Article Zhang, X., Zhu, H., Lv, Z., Zhao, X., Wang, J. & Wang, Q. (2022). Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens. Materials, 15(19), 7034-. https://dx.doi.org/10.3390/ma15197034 1996-1944 https://hdl.handle.net/10356/163156 10.3390/ma15197034 36234375 2-s2.0-85139928160 19 15 7034 en Materials © 2022 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 (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Carbon-Fiber-Reinforced Polymer Biaxial Testing Zhang, Xiaowen Zhu, Haiyang Lv, Zhixing Zhao, Xiangrun Wang, Junwei Wang, Qi Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title | Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title_full | Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title_fullStr | Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title_full_unstemmed | Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title_short | Investigation of biaxial properties of CFRP with the novel-designed cruciform specimens |
| title_sort | investigation of biaxial properties of cfrp with the novel designed cruciform specimens |
| topic | Engineering::Electrical and electronic engineering Carbon-Fiber-Reinforced Polymer Biaxial Testing |
| url | https://hdl.handle.net/10356/163156 |
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