BENDING PROPERTIES OF THREE-DIMENSIONAL FULL FIVE-DIRECTIONAL BRAIDED COMPOSITES

Abstract

Abstract: High strength alkali-free glass fibers were used as raw materials in the paper, and three-dimensional five-direction and full five-directional braided fabrics were both prepared on full-automatic modular braided machine by using braided craft of four-step rule 1×1. Three-dimensional five-direction and full five-directional braided composites were prepared by combined braided fabrics with resin matrix, which including epoxy resin E51 and firming agent 70# (tetralin phthalic anhydride). Bending properties of above braided composites were tested by using Instron universal testing machine, and influence of structure parameters, like axis yarns, braided angles and fiber volume fraction, on compressive properties was studied too. The results show that bending properties increased with the increase of axis yarns and fiber volume fraction, and decreased with the increase of braided angles. Bending property of three-dimensional full five-directional composites were better than that of three-dimensional five-directional ones.

Key words: three-dimensional five-direction, three-dimensional full five-direction, braided composites, bending property, braided angle, axis yarn, fiber volume fraction

CLC Number:

TB332

CAO Hai-jian, WANG Yi-jie, LIU Fei, LU Xue-feng. BENDING PROPERTIES OF THREE-DIMENSIONAL FULL FIVE-DIRECTIONAL BRAIDED COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(9): 39-42.

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