EXPERIMENTAL STUDY ON CREEPAGE DAMAGE OF GFRPUNDER SIMULATE LIGHTNING CURRENT

Abstract

Abstract: In order to study the damage characteristics of GFRP under lightning strike, the lightning strike simulation experiment was carried out in the surface flashover mode. The damage morphology was observed by visual observation, high-definition scanning, image processing analysis and electron microscopy. The results indicate that the thickness of the test plate and the change of the creeping direction have obvious influence on the damage of the resin. The damage area of the test material is positively correlated with the current amplitude and the integral of the action, and negatively correlated with the thickness of the sample plate. Surface flashover mainly causes thermal decomposition damage of resin on the discharge path, where the fiber damage is not obvious, and the interface is layered by thermal decomposition of the resin.

Key words: GFRP, surface flashover, damage area, interface layering

CLC Number:

TB332

YANG Chun-hao, ZHAO Yang, XIAO Yao, XING Hong-yan. EXPERIMENTAL STUDY ON CREEPAGE DAMAGE OF GFRPUNDER SIMULATE LIGHTNING CURRENT[J]. Composites Science and Engineering, 2020, 0(5): 47-52.

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