Development of new repair technologies for out-of autoclave aircraft composite components

今天，大量民用飞机的主要结构是由复合材料制成的。这种类型的结构大多是通过高压灭菌器加工制造的。然而，提高生产率和降低制造成本的需要导致了不需要高压灭菌器的新制造技术的发展。新的高压灭菌器外（OOA）预浸料已经制定，允许在大气压下使用真空袋（VBO）制造零件。商用飞机设计和制造的这些变化需要新的设计和分析工具、新的检查和维护方法以及新的修理方法。负责损伤评估和修复设计的工程师目前没有足够可靠的分析方法或实用工具来设计高可信度的修复。

Today a significant amount of primary structures of civil aircrafts are made of composite materials. This type of structures is mostly manufactured by autoclave processing. However, the need to increase production rate and to lower manufacturing cost have led to the development of new manufacturing techniques that do not require an autoclave. New out-of-autoclave (OOA) prepregs have been formulated to allow part manufacturing using vacuum-bag-only (VBO) under atmospheric pressure. These changes in the design and manufacture of commercial aircraft require new design and analysis tools, new methods of inspection and maintenance, and new repair methodology. Engineers responsible for damage assessment and repair designs currently do not have sufficient reliable analysis methodology or practical tools to design high confidence repairs.