碳纤维复合材料页型胶接接头横向冲击剩余强度研究OA

Adhesive joints are among the most vulnerable regions in composite material structures,particularly susceptible to damage under lateral impacts,which significantly affects their connection strength.This study proposes a novel page-type adhesive joint(PTAJ)and investigates its transverse impact damage and residual strength through finite element simulation and experimental testing.The findings demonstrate that the post-impact residual strength co-efficient of the PTAJ exhibits a decreasing trend with increasing impact energy.Notably,the residual strength coeffi-cient significantly improves with an increase in lap length.Furthermore,the PTAJ achieves a residual strength excee-ding four times that of a single-lap adhesive joint of comparable dimensions,thereby showcasing its superior impact resistance characteristics and engineering potential.