Multi-stage damage identification method for PC structures based on machine learning driven by piezoelectric singular feature

• Published in: Engineering failure analysis Vol. 165; p. 108769
• Main Authors: Dai, Lizhao, Ou, Lingzhi, Yi, Shanchang, Wang, Lei
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2024
• Subjects: Damage identification; Improved BPNN; PC structures; Piezoelectric signal; Singular value decomposition; PC structures; Damage identification; Piezoelectric signal; Improved BPNN; Singular value decomposition

•A multi-stage damage identification method for PC structures is proposed.•The singular value vector in the piezoelectric signal is extracted as the damage feature.•A nonlinear relationship between piezoelectric signal and damage of PC structures is established. Efficient and accurate damage identif...