Z-pin增强树脂基复合材料单搭接头弯曲性能  

Bending Performance of Polymer Composites Single Lap Joints Reinforced by Z-pin

作　　者：董晓阳[1] 李勇[1] 李吻[1] 张向阳[1] 肖军[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《材料工程》2015年第2期26-34,共9页Journal of Materials Engineering

基　　金：军品配套项目(JPPT-1146)

摘　　要：为了研究Z-pin对单搭接头弯曲性能的影响,制备了不同参数Z-pin增强单搭接头试样,研究了Z-pin单搭接头在三点弯曲载荷下连接性能。结果表明：Z-pin（直径0.5mm）体积分数从0%～1.5%时,弯曲载荷随Z-pin体积分数的增加而增加,体积分数在1.5%～3.0%范围内时,试样的弯曲载荷随Z-pin体积分数的增加而下降,Z-pin体积分数为1.5%时达到最大值1303.2N;Z-pin直径为0.3～0.7mm时（体积分数1.5%）,峰值载荷随着直径的增加而增加,0.7mm增强接头的弯曲载荷比0.3mm增强接头高出27.9%。Z-pin植入角度对单搭接头弯曲性能影响不大。另外,随着搭接长度的增加,单搭接头的弯曲性能提高。In order to investigate the effect of Z-pin on the bending performance of polymer composites single lap joints,Z-pin reinforced single lap joint samples with different parameters were prepared.The mechanical properties were tested under three point bending.The results show that at a diameter of 0.5mm,the bending load of single lap joints increases with increasing Z-pin volume fraction from0%to 1.5%,and decreases with further increasing Z-pin volume fraction from 1.5%to 3.0%.The bending load with 1.5% volume fraction reaches the peak value of 1303.2N.At a volume fraction of1.5%,the bending load of single lap joints increases with increasing Z-pin diameter from 0.3mm to0.7mm.Compared with 0.3mm sample,the bending load of single lap joint with 0.7mm Z-pin is27.9% higher.The implant angles of Z-pin have little influence on the bending performance of single lap joints.Besides,the bending performance is enhanced with the increase of overlap length.

关 键 词：复合材料 Z-PIN增强 单搭接头 弯曲 

分 类 号：TB332[一般工业技术—材料科学与工程]