Acoustic emission (AE) is a transient phenomenon in which an elastic wave propagates to a structure as a result of structure damage such as micro-cracks, internal-cracks, friction, fiber breakage and fiber matrix debonding in a structure. AE encompasses a lot of information related to the integrity of the structure. Particularly, AE is used to overcome the difficulties in detecting damages that are hard to detect, such as micro-cracks and internal cracks. Composite structures are widely used in high technology structures due to their high stiffness to weight ratio. However, the source localization in the composite structure has been difficult for years due to variables such as wave propagation direction and speed along the fiber direction. In this paper, we propose laser scan based structural training technique with a single AE sensor (lead zirconate titanate sensor) in a real composite wing skin with a spar and stringers. This technique compensates the difference in characteris...

中文翻译：

---

基于激光的结构训练算法，用于具有不同子结构的复合材料机翼蒙皮中的AE定位和损伤累积可视化

声发射（AE）是一种瞬态现象，其中弹性波由于结构破坏（例如结构中的微裂纹，内部裂纹，摩擦，纤维断裂和纤维基体剥离）而传播到结构。AE包含许多与结构完整性有关的信息。特别地，AE用于克服难以检测诸如微裂纹和内部裂纹之类的难以检测的损伤的困难。复合结构由于其高的刚度/重量比而被广泛用于高科技结构。然而，由于诸如波传播方向和沿着纤维方向的速度之类的变量，复合材料结构中的源定位一直困难多年。在本文中，我们提出了一种基于激光扫描的结构训练技术，该技术使用单个AE传感器（锆钛酸铅传感器）在具有翼梁和纵梁的真实复合机翼蒙皮中。该技术弥补了特性差异。