A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature
Exposure to high temperatures can damage GFRP laminates� mechanical properties and, as a result, degrade their long-term performance, leading to rupture during their service life. Therefore, this study investigated the flexural-creep behaviour of pultruded glass fibre-reinforced polymer (pGFRP) when...
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2024
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my.uniten.dspace-341532024-10-14T11:18:11Z A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature Alhayek A. Syamsir A. Supian A.B.M. Usman F. Najeeb M.I. Asyraf M.R.M. 57221437286 57195320482 57202962691 55812540000 57208125014 57205295733 Elevated temperature Flexural creep behaviour GFRP composite cross-arm Mathematical model Pultrusion Brittleness Creep Data Mathematical Models Samples Service Life Stresses Temperature Bending tests Brittle fracture Fiber reinforced plastics Pultrusion Creep behaviors Cross arm Elevated temperature Flexural creep behavior GFRP composite cross-arm GFRP composites GFRP laminates Glassfiber reinforced polymers (GFRP) S models Stress levels Creep Exposure to high temperatures can damage GFRP laminates� mechanical properties and, as a result, degrade their long-term performance, leading to rupture during their service life. Therefore, this study investigated the flexural-creep behaviour of pultruded glass fibre-reinforced polymer (pGFRP) when subjected to elevated temperatures and utilised two mathematical models to evaluate the structure's serviceability when subjected to a variety of stress levels. Two main parameters were investigated: elevated temperature (25 to 40��C) and constant load levels (12%, 24%, and 37%), whereas the pGFRP specimens were monitored for 720�h (30�days). Furthermore, the experimental work has been paired with mathematical models, namely, Findley�s power law model and Burger�s model, to predict the life span of a pGFRP cross-arm according to the data obtained from creep tests. Results showed the specimens failed in a brittle manner as expected under the static 4-point bending tests with an average ultimate strength of 242.6�MPa. Moreover, both models used to simulate the creep behaviour of the GFRP laminates matched very well with the experimental data. However, these models showed a substantial difference in the strain predicted over the 120,000�h period, with Burger�s model predicting the specimens to reach the ultimate strain in 9.4 to 11.4�years, depending on the stress level, while Findley�s model only showed a minimal increase in the total strain. This suggests that Burger�s model might be more conservative and more reasonable for creep at elevated temperatures. � 2023, The Author(s), under exclusive licence to the Korean Fiber Society. Final 2024-10-14T03:18:11Z 2024-10-14T03:18:11Z 2023 Article 10.1007/s12221-023-00235-3 2-s2.0-85164139846 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85164139846&doi=10.1007%2fs12221-023-00235-3&partnerID=40&md5=8d98a97ad32858fc802759147463df69 https://irepository.uniten.edu.my/handle/123456789/34153 24 7 2425 2437 Korean Fiber Society Scopus |
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Elevated temperature Flexural creep behaviour GFRP composite cross-arm Mathematical model Pultrusion Brittleness Creep Data Mathematical Models Samples Service Life Stresses Temperature Bending tests Brittle fracture Fiber reinforced plastics Pultrusion Creep behaviors Cross arm Elevated temperature Flexural creep behavior GFRP composite cross-arm GFRP composites GFRP laminates Glassfiber reinforced polymers (GFRP) S models Stress levels Creep |
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Elevated temperature Flexural creep behaviour GFRP composite cross-arm Mathematical model Pultrusion Brittleness Creep Data Mathematical Models Samples Service Life Stresses Temperature Bending tests Brittle fracture Fiber reinforced plastics Pultrusion Creep behaviors Cross arm Elevated temperature Flexural creep behavior GFRP composite cross-arm GFRP composites GFRP laminates Glassfiber reinforced polymers (GFRP) S models Stress levels Creep Alhayek A. Syamsir A. Supian A.B.M. Usman F. Najeeb M.I. Asyraf M.R.M. A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| description |
Exposure to high temperatures can damage GFRP laminates� mechanical properties and, as a result, degrade their long-term performance, leading to rupture during their service life. Therefore, this study investigated the flexural-creep behaviour of pultruded glass fibre-reinforced polymer (pGFRP) when subjected to elevated temperatures and utilised two mathematical models to evaluate the structure's serviceability when subjected to a variety of stress levels. Two main parameters were investigated: elevated temperature (25 to 40��C) and constant load levels (12%, 24%, and 37%), whereas the pGFRP specimens were monitored for 720�h (30�days). Furthermore, the experimental work has been paired with mathematical models, namely, Findley�s power law model and Burger�s model, to predict the life span of a pGFRP cross-arm according to the data obtained from creep tests. Results showed the specimens failed in a brittle manner as expected under the static 4-point bending tests with an average ultimate strength of 242.6�MPa. Moreover, both models used to simulate the creep behaviour of the GFRP laminates matched very well with the experimental data. However, these models showed a substantial difference in the strain predicted over the 120,000�h period, with Burger�s model predicting the specimens to reach the ultimate strain in 9.4 to 11.4�years, depending on the stress level, while Findley�s model only showed a minimal increase in the total strain. This suggests that Burger�s model might be more conservative and more reasonable for creep at elevated temperatures. � 2023, The Author(s), under exclusive licence to the Korean Fiber Society. |
| author2 |
57221437286 |
| author_facet |
57221437286 Alhayek A. Syamsir A. Supian A.B.M. Usman F. Najeeb M.I. Asyraf M.R.M. |
| format |
Article |
| author |
Alhayek A. Syamsir A. Supian A.B.M. Usman F. Najeeb M.I. Asyraf M.R.M. |
| author_sort |
Alhayek A. |
| title |
A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| title_short |
A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| title_full |
A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| title_fullStr |
A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| title_full_unstemmed |
A Mathematical Model of Flexural-Creep Behaviour for Future Service Expectancy of a GFRP Composite Cross-Arm with the Influence of Outdoor Temperature |
| title_sort |
mathematical model of flexural-creep behaviour for future service expectancy of a gfrp composite cross-arm with the influence of outdoor temperature |
| publisher |
Korean Fiber Society |
| publishDate |
2024 |
| _version_ |
1814061106709135360 |
| score |
13.211869 |