Guel Nicolas, Hamam Zeina, Godin Nathalie, Reynaud Pascal, Caty Olivier, Bouillon Florent, Paillassa Aude
IRT Saint-Exupéry, Esplanade des Arts et Métiers, F-33405 Talence CEDEX, France.
INSA Lyon, MATEIS, University of Lyon, CNRS UMR-5510, 7 avenue Jean Capelle, F-69621 Villeurbanne CEDEX, France.
Materials (Basel). 2020 Oct 21;13(20):4691. doi: 10.3390/ma13204691.
In this paper, acoustic emission data fusion based on multiple measurements is presented for damage detection and identification in oxide-based ceramic matrix composites. Multi-AE (acoustic emission) sensor fusion is considered with the aim of a better identification of damage mechanisms. In this context, tensile tests were conducted on ceramic matrix composites, fabricated with 3M™ Nextel™ 610 fibers and aluminosilicate matrix, with two kinds of AE sensors. Redundant and complementary sensor data were merged to enhance AE system capability and reliability. Data fusion led to consistent signal clustering with an unsupervised procedure. A correlation between these clusters and the damage mechanisms was established thanks to in situ observations. The complementarity of the information from both sensors greatly improves the characterization of sources for their classification. Moreover, this complementarity allows features to be perceived more precisely than using only the information from one kind of sensor.
本文提出了基于多测量的声发射数据融合方法,用于氧化物基陶瓷基复合材料的损伤检测与识别。考虑采用多声发射(AE)传感器融合,以更好地识别损伤机制。在此背景下,使用两种AE传感器对由3M™ Nextel™ 610纤维和硅铝酸盐基体制造的陶瓷基复合材料进行了拉伸试验。将冗余和互补的传感器数据进行合并,以增强AE系统的能力和可靠性。通过无监督程序,数据融合实现了一致的信号聚类。借助原位观察,建立了这些聚类与损伤机制之间的关联。来自两种传感器的信息互补性极大地改善了源特征以进行分类。此外,这种互补性使得特征比仅使用一种传感器的信息时能被更精确地感知。