复合材料科学与工程Issue(10)：17-23,7.DOI:10.19936/j.cnki.2096-8000.20241028.003
基于激光诱导石墨烯电学成像的复合材料结构损伤监测
Damage moniotoring for composite structures by using laser-induced graphene and electrical tomography
摘要
Abstract
Targeting the high velocity impact of missiles,shells and their fragments on military aircrafts,com-posite laminate with self-sensing capability for monitoring ballistic damage is proposed.Graphene sensing layer on the surface of polyimide paper is fabricated by laser-induced technology and co-cured in composite laminate to sense and identify damage with electrical tomography.Before and after the composite laminate is subjected to high velocity impact,excitation current is injected into the graphene sensing layer and the corresponding boundary voltage is measured.The distribution image of the conductivity change of the sensing layer caused by the damage is reconstructed by regularization-based algorithm,and information about the damage is identified.Experimental stud-ies by ballistic impacts have shown that laser-induced graphene layer on polyimide paper has good sensing capabili-ty,and the tomography image reconstructed by electrical tomography can accurately reflect the location of damage and provide information about the approximate size of the damage,verifying the effectiveness of the proposed self-sensing composite laminate for monitoring of high velocity impact damage.关键词
激光诱导石墨烯/自感知复合材料结构/高速冲击损伤监测/电学成像Key words
laser-induced graphene/self-sensing composite structure/high velocity impact damage monito-ring/electrical tomography分类
通用工业技术引用本文复制引用
于鑫飞,严刚,周登..基于激光诱导石墨烯电学成像的复合材料结构损伤监测[J].复合材料科学与工程,2024,(10):17-23,7.基金项目
国家自然科学基金(11602104) （11602104）
航空航天结构力学及控制国家重点实验室开放课题(MCMS-E-0423G02) （MCMS-E-0423G02）
