Z-pin增强复合材料加筋构件连接性能研究  

Study on connection performance of Z-pin reinforced composite members

作　　者：刘维伟[1] 尹明鑫 滕薛蓓 靳可心 严斌 LIU Weiwei;YIN Mingxin;TENG Xuebei;JIN Kexin;YAN Bin(School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西北工业大学机电学院,西安710072

出　　处：《复合材料科学与工程》2023年第9期98-105,共8页Composites Science and Engineering

摘　　要：通过横向三点弯曲试验研究Z-pin直径和体积分数对复合材料加筋类简化构件连接性能的影响。随着Z-pin体积分数的增加,Z-pin增强试件相比于空白对照试件,有效载荷提升48.41%~96.97%,总能量耗散提升661.88%~748.72%,本试验组研究结果表明高Z-pin体积分数可以有效提高加筋试件的承载能力。在Z-pin体积分数同为0.4%的情况下,Z-pin直径为0.5 mm的试验组的承载能力略高于Z-pin直径为0.3 mm的试验组的承载能力,但Z-pin直径为0.3 mm的试验组具有更好的稳定性。试验结果表明Z-pin的植入能够提高复合材料加筋类简化构件的有效载荷及能量耗散,很大程度上提高了加筋试件的连接性能。The transverse three-point bending tests were used to study the impact of Z-pin diameter and volume content on the connection performance of composite toughened simplified components.Compared to the blank control group,the payload of Z-pin toughened specimens increased by 48.41%to 96.97%and the total energy dissipation by 661.88%to 748.72%with an increase in Z-pin volume content.The results of this test show that toughened specimens’load carrying capacity can be significantly increased by using high Z-pin volume content.The load carrying capacity of the test group with the Z-pin diameter of 0.5 mm is slightly greater than that of the test group with the Z-pin diameter of 0.3 mm,but the test group with the Z-pin diameter of 0.3 mm has better stability in the case of the same Z-pin volume content of 0.4%.According to the test results,Z-pin implantation can improve the payload and energy dissipation of the composite toughened class’s simplified members and,obviously,enhance the connection performance of the toughened specimens.

关 键 词：Z-PIN 加筋构件 有效载荷 连接性能 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]