A non-destructive testing method for metal stress based on conductivity measurement. Issue 1 (January 2021)

• Record Type: Journal Article
• Authors: Lu, Qi; Wang, Li; Gao, Xiang; Tang, Jiaqi
• Is Part Of: Journal of physics. Volume 1750:Issue 1(2021)
• Publication Date: 2021-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1750/1/012052
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Military weapons and equipment have been working under harsh and complex conditions for a long time during their service. Due to external loads and environmental corrosion, load-bearing beams, engine blades, fixed connectors and other stressed components are prone to fatigue defects and even brittle fractures caused by stress concentration. Socio-economic and operating personnel's life safety poses a huge threat. Based on electromagnetic eddy current testing, this paper mainly studies the influence of metal material stress on material conductivity and establishes a mathematical model of conductivity and stress through experiments to provide theoretical help for sensor measurement signal processing.