Monitoring Damage Progression in Tensile Tested SiCp/Al Composites Using Acoustic Emission

被引：4

作者：

Wu, Weiguo ^{[1
]}

Wei, Wei ^{[1
]}

Wang, Yanju ^{[2
]}

Sha, Aixue ^{[2
]}

Hao, Wenfeng ^{[3
]}

机构：

[1] Jiangsu Univ, Fac Civil Engn & Mech, Zhenjiang, Peoples R China

[2] AECC Beijing Inst Aeronaut Mat, Mat Evaluat Ctr Aeronaut & Aeroengine Applicat, Beijing, Peoples R China

[3] Yangzhou Univ, Coll Mech Engn, Yangzhou, Peoples R China

来源：

FRONTIERS IN MATERIALS | 2022年 / 9卷

关键词：

SiCp; Al composites; failure mechanism; principal component analysis; acoustic emission; cluster analysis; MECHANISM; BEHAVIOR; MATRIX; SHAFTS;

D O I：

10.3389/fmats.2022.918091

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the tensile tests of SiCp/Al composites were carried out, and the acoustic emission (AE) method was used to monitor the damage progress. The collected signals were analyzed in time-frequency domain. The AE signals were analyzed by principal component analysis (PCA) and fuzzy clustering method (FCM) to characterize the damage mode and failure mechanism of SiCp/Al composites. Three main damage modes of SiCp/Al composites were identified by FCM clustering: SiC/Al interface debonding, Al fracture and SiC particle fracture. After the tensile test, the fracture surface was analyzed by scanning electron microscope (SEM). The results of SEM and energy spectrum analysis confirmed the results of AE. The research results of this paper provide experimental support for the design and engineering application of SiCp/Al composites.

引用

页数：10

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