Abstract

Static tests of a two-spar T800 CFRP wing box have been carried out. The object was tested when loaded using the methods of acoustic emission (AE) and strain gaging. Strain in the material was determined in real time in the areas where strain gages were bonded (the panels of wing box, the walls of side members, and the shelves of stringers). The elements of the wing box have been established in which nonlinear strain change is observed and residual deformations are recorded after unloading. The AE method has been used to localize the sources of signals. The coordinates of the sources corresponded to the location of the third rib. Clustering recorded AE signals based on their digitized form has made it possible to group the signals and assign them to sources that correspond to structure failure. It is shown that in the process of loading the wing box, an increase in the structural coefficient of AE signals corresponding to CFRP delamination in the location zone is observed.

中文翻译：

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复合机翼机翼盒的声发射和应变计静态测试

摘要

两梁T的静态测试800 CFRP翼盒已经完成。使用声发射（AE）和应变计的方法对物体进行测试。材料中的应变是在应变计所粘合的区域（机翼箱的面板，侧梁的壁以及纵梁的架子）上实时确定的。已经建立了机翼盒的元件，其中观察到非线性应变变化并在卸载后记录了残余变形。AE方法已用于定位信号源。源的坐标对应于第三肋的位置。根据其数字化形式对已记录的AE信号进行聚类，可以对信号进行分组并将其分配给与结构故障相对应的源。结果表明，在装载机翼盒的过程中，