Fatigue Behavior of 3D Braided Composites Containing an Open-Hole
Abstract
:1. Introduction
2. Experimental
2.1. Material Manufacturing
2.2. Quasi-Static and Fatigue Test Procedures
3. Results and Discussion
3.1. Yarn Cross Section
3.2. Open–Hole Quasi-Static Results
3.3. Open Hole Tension–Tension Fatigue Results
3.4. Failure Mechanism
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Properties | Matrix | AS4-6k |
---|---|---|
Tensile modulus, GPa | 2.74 | 231 |
Tensile strength, MPa | 51 | 4447 |
Strain, % | 3.6% | 1.7 |
Density, g/m3 | 1.16 | 1.78 |
Tension | Compression | |||||||
---|---|---|---|---|---|---|---|---|
Vf | Without Hole/MPa | With Hole/MPa | Strength Retention% | Without Hole/MPa | With Hole/MPa | Strength Retention% | ||
3-D Braided | Style I (0° ± 12°) | 59 | 1173 ± 61 | 910 ± 57 | 80 | 589 ± 53 | 368 ± 61 | 62 |
Style II (± 12°) | 62 | 1279 ± 80 | 951 ± 45 | 74 | 596 ± 56 | 406 ± 33 | 68 | |
C12K/3501 (0° ± 20°) [2] | 60 | 668 | 661 | 99 | 429 | 314 | 73 | |
PEEK/AS4 (0° ± 20°) [34] | 60 | 586 | 463 | 79 | - | 259 | - | |
Laminates | Hexcel Ply 8552 [35] | 60 | 2205 | 432 | 20 | - | - | - |
18-ply APC-2 [(0 ± 20°)4, 0]s [34] | 60 | 1081 | 628 | 58 | 646 | 363 | 56 | |
24-ply AS43501 [−45/0/+ 45/90]s [2] | 60 | 911 | 445 | 49 | 420 | 403 | 96 | |
16-ply (0° ± 20°) [36] | 63 | 703 | 472 | 67 | 665 | 398 | 60 |
a | b | |
---|---|---|
100% un-notched | 1113 | −0.031 |
100% notched | 930.27 | −0.0312 |
42% axial un-notched | 1238.7 | −0.031 |
42% axial notched | 936.6 | −0.017 |
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Liang, S.; Zhou, Q.; Mei, H.; Chen, G.; Ko, F. Fatigue Behavior of 3D Braided Composites Containing an Open-Hole. Polymers 2020, 12, 2147. https://doi.org/10.3390/polym12092147
Liang S, Zhou Q, Mei H, Chen G, Ko F. Fatigue Behavior of 3D Braided Composites Containing an Open-Hole. Polymers. 2020; 12(9):2147. https://doi.org/10.3390/polym12092147
Chicago/Turabian StyleLiang, Shuangqiang, Qihong Zhou, Haiyang Mei, Ge Chen, and Frank Ko. 2020. "Fatigue Behavior of 3D Braided Composites Containing an Open-Hole" Polymers 12, no. 9: 2147. https://doi.org/10.3390/polym12092147