Tensile strength of Z-pinned laminates in RTD and hot-wet environment
Experiments and simulation analysis for tensile strength of Z-pinned laminates were conducted in both room temperature and dry and hot-wet environments. The results of the experiments show that the fracture of [0]6 specimen with Z-pins was longitudinally torn, and there was a row of Z-pins at the fr...
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| Format: | Article |
| Language: | English |
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De Gruyter
2017-01-01
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| Series: | Science and Engineering of Composite Materials |
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| Online Access: | https://doi.org/10.1515/secm-2014-0352 |
| _version_ | 1818682619363065856 |
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| author | Li Chenghu Guo Wei Wu Zhe |
| author_facet | Li Chenghu Guo Wei Wu Zhe |
| author_sort | Li Chenghu |
| collection | DOAJ |
| description | Experiments and simulation analysis for tensile strength of Z-pinned laminates were conducted in both room temperature and dry and hot-wet environments. The results of the experiments show that the fracture of [0]6 specimen with Z-pins was longitudinally torn, and there was a row of Z-pins at the fracture of [(±45)/(0,90)]2S specimen with Z-pins. It could be observed that the hot-wet effect on the tensile strength of the Z-pinned laminates increased with percentage of 0-direction fibers decreasing in the laminates from the experiments of the unidirectional tape laminates and the woven cloth laminates. When the volume content of Z-pin increased, the hot-wet effect on tensile strength of Z-pinned [45/0/-45/90]2S laminates with Z-pins would become smaller and smaller. The simulation method of the hot-wet effect on tensile strength of the laminates was combined with the experiment and the finite element analysis. It used 14 nonlinear springs to simulate the longitudinal tearing of [0]6 specimen with Z-pins. The simulation results showed that Z-pin played a role of fulcrum, and because of the lever principle, the fiber bundles were torn at both tips in resin-rich area. |
| first_indexed | 2024-12-17T10:21:43Z |
| format | Article |
| id | doaj.art-7c562b94e4c84858a21e21a35be983a7 |
| institution | Directory Open Access Journal |
| issn | 0792-1233 2191-0359 |
| language | English |
| last_indexed | 2024-12-17T10:21:43Z |
| publishDate | 2017-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Science and Engineering of Composite Materials |
| spelling | doaj.art-7c562b94e4c84858a21e21a35be983a72022-12-21T21:52:47ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592017-01-0124110110910.1515/secm-2014-0352Tensile strength of Z-pinned laminates in RTD and hot-wet environmentLi Chenghu0Guo Wei1Wu Zhe2School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaAeronautic Equipment Training Base, Beijing 100076, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaExperiments and simulation analysis for tensile strength of Z-pinned laminates were conducted in both room temperature and dry and hot-wet environments. The results of the experiments show that the fracture of [0]6 specimen with Z-pins was longitudinally torn, and there was a row of Z-pins at the fracture of [(±45)/(0,90)]2S specimen with Z-pins. It could be observed that the hot-wet effect on the tensile strength of the Z-pinned laminates increased with percentage of 0-direction fibers decreasing in the laminates from the experiments of the unidirectional tape laminates and the woven cloth laminates. When the volume content of Z-pin increased, the hot-wet effect on tensile strength of Z-pinned [45/0/-45/90]2S laminates with Z-pins would become smaller and smaller. The simulation method of the hot-wet effect on tensile strength of the laminates was combined with the experiment and the finite element analysis. It used 14 nonlinear springs to simulate the longitudinal tearing of [0]6 specimen with Z-pins. The simulation results showed that Z-pin played a role of fulcrum, and because of the lever principle, the fiber bundles were torn at both tips in resin-rich area.https://doi.org/10.1515/secm-2014-0352feahot-wettensile strengthz-pin |
| spellingShingle | Li Chenghu Guo Wei Wu Zhe Tensile strength of Z-pinned laminates in RTD and hot-wet environment Science and Engineering of Composite Materials fea hot-wet tensile strength z-pin |
| title | Tensile strength of Z-pinned laminates in RTD and hot-wet environment |
| title_full | Tensile strength of Z-pinned laminates in RTD and hot-wet environment |
| title_fullStr | Tensile strength of Z-pinned laminates in RTD and hot-wet environment |
| title_full_unstemmed | Tensile strength of Z-pinned laminates in RTD and hot-wet environment |
| title_short | Tensile strength of Z-pinned laminates in RTD and hot-wet environment |
| title_sort | tensile strength of z pinned laminates in rtd and hot wet environment |
| topic | fea hot-wet tensile strength z-pin |
| url | https://doi.org/10.1515/secm-2014-0352 |
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