This paper focuses on the problem of skin corrosion on the upper wing surfaces of rib-stiffened aircraft. For maritime and military transport aircraft this often results in multiple co-located repairs. The common approach to corrosion damage in operational aircraft is to blend out the corrosion and rivet a mechanical doubler over the region. In particular this paper describes the results of a combined numerical and experimental investigation into the ability of the additive metal technology, Supersonic Particle Deposition (SPD), to restore the load-carrying capacity of rib-stiffened wing planks with simulated skin corrosion. The experimental results reveal that unrepaired skin corrosion can result in failure by yielding. The experimental results also reveal that SPD repairs to skin corrosion can restore the stress field in the structure, and can ensure that the load-carrying capability of the repaired structure is above proof load.

中文翻译：

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飞机蒙皮腐蚀的添加剂金属解决方案

本文重点研究加强筋飞机机翼上表面的蒙皮腐蚀问题。对于海上和军用运输机而言，这通常会导致多个同地维修。操作飞机腐蚀损坏的常见方法是混合腐蚀并在该区域上铆接一个机械倍增器。特别是，本文描述了对添加剂金属技术超音速粒子沉积 (SPD) 的能力进行数值和实验研究的结果，该技术可通过模拟皮肤腐蚀恢复带肋加强翼板的承载能力。实验结果表明，未修复的皮肤腐蚀会导致屈服失效。实验结果还表明，SPD对表皮腐蚀的修复可以恢复结构中的应力场，