摘要
针对激光错位散斑检测真空加载影响因素多、检测参数不易确定的问题,以含有损伤的T300/QY8911碳纤维复合材料为例,建立了真空加载激光错位散斑检测有限元仿真模型,仿真结果说明缺陷尺寸、缺陷位置、真空载荷对激光错位散斑检测影响较大。仿真和试验结果基本吻合,说明建立的Solid46模型是可靠的,可利用其对检测结果进行预判,这对复合材料激光错位散斑检测工艺的制定具有重要指导意义。
As the vacuum loading influencing factors of laser shearography testing are complicated,it is not easy to select suitable parameters.Finite element simulation model of the vacuum laser shearography is applied to simulate T300/QY8911 carbon fiber reinforced composite with impact damages.The simulation results show that many factors including the size and position of delaminations,and the vacuum pressure have a strong influence on testing results.Furthermore,experiments give similar results.So Solid46 model can be used to forecast testing results which is very helpful for laser shearography testing process making of composite material.
作者
郭孝欢
孙法亮
GUO Xiaohuan, SUN Faliang(Aeronautic Repair Engineering Department, The First Aeronautic Institute of the Air Force, Xinyang 464000, Chin)
出处
《无损检测》
2018年第3期10-13,18,共5页
Nondestructive Testing
关键词
激光错位散斑
复合材料
影响因素
有限元仿真
laser shearography
composite material
influeneing faetor
finite element simulation
