题 目：The Response of Fiber Reinforced Polymer Composite Material under Fire and Its Mitigation Methods
报告人：Liang, Ruifeng Ray 教授
单 位：West Virginia University
时 间：2024/10/23（周三）10:00
地 点：海西院综合楼235会议室
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报告简介：
The fire performance of fiber reinforced polymer (FRP) composite material is regarded as one of its disadvantages. However, our recent studies revealed that a composite utility structure might survive from an active wildfire front. This presentation will cover the effect of fire exposure on the mechanical properties of FRP composite utility structures (poles and crossarms) and the effective techniques to mitigate fire damage. These techniques are the application of intumescent coatings and the installation of a thin fire protection sleeve around the lower portion of the installed composite pole. The study included samples from four pole manufacturers and six crossarm manufacturers, currently active in North America. The samples were exposed to simulated wildfire damage by using a flame front temperature of ~1000°C with durations of 1, 2 and 3 minutes. Coupon specimens were cut from the post-burn sections for both the pole and crossarm samples and tested for their mechanical properties under three-point bending and short beam shear test methods. This testing was repeated for samples with intumescent coating, and fire protection sleeve shielding. The results were compared to unburned specimens. This research has demonstrated the significant influence of intumescent coatings and other fire mitigation methods on the mechanical properties of composite utility poles and crossarms when exposed to flames of varying durations. Both intumescent coatings and fire protective sleeves can play a crucial role in improving the fire resistance of composite utility poles and crossarms. These fire mitigation methods help preserve the structural integrity of these utility structures when exposed to flames, thus reducing the risk of structure failure during fire events. This research is sponsored by EPRI.
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报告人简介：
Liang, Ruifeng Ray（梁瑞凤），博士，是西弗吉尼亚大学复合材料研究中心教授，担任美国国家科学基金会基础设施领域复合材料协同创新中心（CICI）常务主任，国际学术期刊《Sustainable Structures》美洲主编，美国复合材料协会（ACMA）技术委员会委员、教育委员会委员。同时还担任美国华人大会组委会主席，中国旅美科技协会总会副会长，中国复合材料学会国际合作委员会副主任。主要专注于纤维增强高分子复合材料的研发和应用。