Mechanical and electromechanical behaviors of heating grid with hybrid fiber

doi:10.19936/j.cnki.2096-8000.20221128.012

Abstract

Abstract: As the traditional snow melting and ice melting methods have problems such as time-consuming, labor-intensive and environmental pollution, using hybrid-fiber heating grid in the road pavement to melt snow with both reinforcement and electrothermal advantages has become an important research direction in recent years. In this study, the static tensile properties and electromechanical behaviors of carbon fiber heating core and hybrid fiber heating grid were investigated, including six types of carbon fiber impregnated roving, with three types of matrices (epoxy/SBL/polyurethane) and two weaving forms (untwisted/twisted), warp/weft basalt fiber grid, hybrid fiber heating grid. The results showed that the integrative behavior of polyurethane resin twisted carbon roving and basalt fiber grid was satisfactory. The elastic modulus of hybrid fiber heating grid was 87 GPa and the strength utilization efficiency was 93.6%. The resistance changing rate between 0~10 000 με maintained within 1%, which can meet the requirements of engineering applications.

Key words: heating grid, hybrid fiber, mechanical behavior, electromechanical behavior

CLC Number:

TB332

PENG Zhe-qi, WANG Xin, LIANG Xun-mei, ZHAO Chun-feng, SHEN Jun-qian. Mechanical and electromechanical behaviors of heating grid with hybrid fiber[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(11): 82-89.

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