不同针刺工艺的针刺复合材料面内拉伸强度分析

戚云超, 方国东, 周振功, 梁军

In-plane Tensile Strength for Needle-punched Composites Prepared by Different Needling Processes

QI Yunchao, FANG Guodong, ZHOU Zhengong, LIANG Jun

表1 针刺复合材料制备工艺和拉伸强度

Table 1 Process and tensile strength of needle-punched composites

Process id Needling depth/mm Needling density /needles·cm-2 Interlayer density (layers)/cm Tensile strength /MPa CV 1 13 22 13.5 179.2 6.43% 2 13 35 13.5 165.0 9.68% 3 15 22 13.5 131.9 8.74% 4 15 35 13.5 123.0 10.4% 5 18 22 14.2 72.2 7.30% 6 18 35 15.2 62.9 10.3%