A novel structural health monitoring approach in concrete structures using embedded magnetic shape memory alloy components. (13th December 2021)

• Record Type: Journal Article
• Authors: Davis, A.M.; Mirsayar, M.M; Hartl, D.J.
• Is Part Of: Construction & building materials. Volume 311(2021)
• Publication Date: 2021-12-13
• Subjects: Structural health monitoring (SHM) -- Magnetic sensing -- Concrete structures -- Magnetic shape memory alloys (MSMA) -- Non-destructive evaluation (NDE); Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2021.125212
• Languages: English
• ISSNs: 0950-0618

Abstract

Graphical abstract: Highlights: A novel concrete SHM approach using embedded magnetic SMA components. Magnetic shape memory alloys can change their magnetic properties with stress. Internal concrete damage is correlated to changes in external magnetic measurements. Coupled structural/magneto-static modeling tools developed for damage detection. Abstract: In the field of structural health monitoring, innovative methods of non-destructive evaluation (NDE) are being investigated to enable safer, longer lasting structures. In concrete structures, stress-induced phase transformations in embedded Magnetic Shape Memory Alloy (MSMA) components caused by failure in a surrounding concrete matrix can be correlated to changes in measurable magnetic properties. In this paper, a computational framework is developed to evaluate the development of stress-induced martensite due to damage in a load-bearing concrete-MSMA composite, which alters an externally applied magnetic field. The computational results support a new approach in NDE of concrete structures using embedded phase transforming materials.