Advanced Ultrasonic Imaging of Composite Repairs in Aero-Structures (AURORAS)

复合材料结构由于其刚度、重量轻和耐腐蚀性而越来越多地用于飞机中，但对可能产生诸如分层等缺陷的冲击损伤敏感。可见的损坏区域使用粘合复合材料修复方法进行修复。修复过程对过程参数敏感，并且小的变化将导致可能导致机械完整性降低的缺陷。复合材料修补的检查是困难的，尚未充分发展，以满足检查质量要求。AURORAS将开发相控阵超声测试（PAUT）技术，将3D成像与高分辨率“全聚焦法”（TFM）相结合，以非破坏性地评估飞机结构复合材料部件的损伤。一旦对损坏进行了分类和大小确定，将进行原位修复过程，并使用针对复合修复材料优化的类似PAUT技术重新检查修复以检测缺陷。主要的项目交付将是一个原型系统规范，三维成像和TFM软件，演示试验显示PAUT方法对复合材料修复组件。合作伙伴提供的维修服务。

Composite structures are increasingly utilised in aircraft for their stiffness, light weight and corrosion resistance but are sensitive to impact damage that can produce defects such delaminations . Damaged areas that are visible are repaired using an adhesively bonded composite repair method. The repair process is sensitive to process parameters and small variations will lead to defects that may result in reduced mechanical integrity. The inspection of composite repairs is difficult and not yet sufficiently developed to meet inspection quality requirements. AURORAS will develop the Phased Array Ultrasonic Test (PAUT) technique incorporating 3D imaging with high resolution 'Total Focusing Method' (TFM) to non-destructively assess the damage in aerostructure composite components. Once the damage has been classified and sized, an in-situ repair process will be undertaken and the repair will be re-inspected to detect defects using a similar PAUT technique optimised for the composite repair material. The main project deliverables will be a prototype system spec, 3D imaging & TFM software, a demonstration trial showing the PAUT method on composite repair components. repairomponents provided by the partners.