Tests on Tensile Strength of Bolted-Repaired Composite Joints
WANG Hang1, LI Xiang1, XIE Zonghong1, ZHANG Xiaoqi2
1. School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China;
2. The People’s Liberation Army, 95858 Troop, Shenyang 110035, China
Uniaxial tensile test was used to test the unidirectional tensile strength of the composite plate with penetrating hole damage and the bolted-repaired joints plate containing the penetrating hole damage, and the bolted-repaired composite plate with the damage of the penetrating hole was evaluated. The effect of repair was analyzed, and the failure load, failure mode, and stress distribution of the bolted-repaired composite plate structure containing the damage of the penetrating hole were analyzed. The test results show that: The typical failure modes of the composite plate with penetrating hole damage and the bolted-repaired composite plate with penetrating hole damage are transverse tensile failures; compared with non penetrating hole damage plate, the recovery rate of tensile strength of the repair plate with penetrating hole damage reaches 44.2%; the strain readings indicate that the patch can be relieve the load at the edge of the damage hole of the plate, thereby increasing the tensile strength of the structure effectively.
基金资助:国家自然科学基金重点项目(U1233202)。
作者简介: 王航:硕士研究生,研究方向为飞行器复合材料结构设计。
引用本文:
王航1,李想1,谢宗蕻1,张晓祺2. 含通孔损伤复材壁板螺接修理接头拉伸性能试验研究[J]. 航空制造技术, 2018, 61(20): 56-62.
WANG Hang1, LI Xiang1, XIE Zonghong1, ZHANG Xiaoqi2. Tests on Tensile Strength of Bolted-Repaired Composite Joints. Aeronautical Manufacturing Technology, 2018, 61(20): 56-62.