Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms
To overcome the fatigue safety problem of transmission tower cross arms caused by the wind-induced vibrations, an experimental study on the high-cycle fatigue performance of a new type of GFRP-steel sleeve composite cross arms was carried out. A total of six specimens were subjected to 500 thousand...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/6346080 |
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| author | Jiantao Wang Ning Tan Shiming Zhou Qing Sun |
| author_facet | Jiantao Wang Ning Tan Shiming Zhou Qing Sun |
| author_sort | Jiantao Wang |
| collection | DOAJ |
| description | To overcome the fatigue safety problem of transmission tower cross arms caused by the wind-induced vibrations, an experimental study on the high-cycle fatigue performance of a new type of GFRP-steel sleeve composite cross arms was carried out. A total of six specimens were subjected to 500 thousand cyclic loadings based on the practical engineering background. The stress state was monitored, and a variety of load-displacement-time curves, the energy dissipation capacity, and the dynamic strain were analyzed to examine the effects of fatigue loading. After the fatigue test, the specimens without significant fatigue failure were evaluated to derive the residual bearing capacity. Based on the residual strength theory, the cumulative damage was examined, and the fatigue life was predicted under various loading conditions to ensure the reliability of composite cross arms. It is shown that the new type full-scale GFRP-steel sleeve composite cross arms can demonstrate a high level of safety redundancy on antifatigue performance and can be expected for wide application in power transmission towers. |
| format | Article |
| id | doaj-art-bce0aca0c2674e13a8f1737b2045bfb9 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-bce0aca0c2674e13a8f1737b2045bfb92025-02-03T01:10:26ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/63460806346080Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross ArmsJiantao Wang0Ning Tan1Shiming Zhou2Qing Sun3Department of Civil Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaSchool of Aerospace, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaDepartment of Civil Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaDepartment of Civil Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaTo overcome the fatigue safety problem of transmission tower cross arms caused by the wind-induced vibrations, an experimental study on the high-cycle fatigue performance of a new type of GFRP-steel sleeve composite cross arms was carried out. A total of six specimens were subjected to 500 thousand cyclic loadings based on the practical engineering background. The stress state was monitored, and a variety of load-displacement-time curves, the energy dissipation capacity, and the dynamic strain were analyzed to examine the effects of fatigue loading. After the fatigue test, the specimens without significant fatigue failure were evaluated to derive the residual bearing capacity. Based on the residual strength theory, the cumulative damage was examined, and the fatigue life was predicted under various loading conditions to ensure the reliability of composite cross arms. It is shown that the new type full-scale GFRP-steel sleeve composite cross arms can demonstrate a high level of safety redundancy on antifatigue performance and can be expected for wide application in power transmission towers.http://dx.doi.org/10.1155/2018/6346080 |
| spellingShingle | Jiantao Wang Ning Tan Shiming Zhou Qing Sun Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms Advances in Civil Engineering |
| title | Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms |
| title_full | Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms |
| title_fullStr | Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms |
| title_full_unstemmed | Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms |
| title_short | Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms |
| title_sort | experimental study on high cycle fatigue behavior of gfrp steel sleeve composite cross arms |
| url | http://dx.doi.org/10.1155/2018/6346080 |
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