Investigation of flexural mechanical and creep properties of sleeve reinforced pultruded glass fibre reinforced polymer composite for crossarm application DOI Creative Commons
Vijayvignesh Namasivayam Sukumaar, M. R. Ishak, Mohd Na’im Abdullah

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 8, 2025

Pultruded glass fiber-reinforced polymer (PGFRP) composites are innovative materials used in high-rise transmission towers that undergo failure due to long-term static loading phenomenon. This research focuses on retrofitting PGFRP composite cross-arms with plug-in type sleeve reinforcements by employing a three-point bending (3 PB) test analyze the cross-arm's elastic properties, flexural creep response, and deflection behaviour. The addition of retrofit significantly improved load-deflection behaviour resistance, 45.30% 47.10%, respectively. Findley's power law model was accurately predict viscoelastic response structure, revealing virgin cross-arm experienced 75% drop modulus, while sleeve-reinforced saw only 34% decrease indicating over 40% improvement ability resist deformation extended periods. Additionally, overall reduction factor 0.51 contrast cross-arm. showed reduced deflection, better increased strength, longer theoretical lifespan. Predictions indicate surpasses current one mechanical performance.

Language: Английский

Investigation of flexural mechanical and creep properties of sleeve reinforced pultruded glass fibre reinforced polymer composite for crossarm application DOI Creative Commons
Vijayvignesh Namasivayam Sukumaar, M. R. Ishak, Mohd Na’im Abdullah

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 8, 2025

Pultruded glass fiber-reinforced polymer (PGFRP) composites are innovative materials used in high-rise transmission towers that undergo failure due to long-term static loading phenomenon. This research focuses on retrofitting PGFRP composite cross-arms with plug-in type sleeve reinforcements by employing a three-point bending (3 PB) test analyze the cross-arm's elastic properties, flexural creep response, and deflection behaviour. The addition of retrofit significantly improved load-deflection behaviour resistance, 45.30% 47.10%, respectively. Findley's power law model was accurately predict viscoelastic response structure, revealing virgin cross-arm experienced 75% drop modulus, while sleeve-reinforced saw only 34% decrease indicating over 40% improvement ability resist deformation extended periods. Additionally, overall reduction factor 0.51 contrast cross-arm. showed reduced deflection, better increased strength, longer theoretical lifespan. Predictions indicate surpasses current one mechanical performance.

Language: Английский

Citations

0