A novel concept of embedding phase transforming solid sensory particles into metallic structures to detect the initiation and propagation of cracks via strong magnetic signals.
A synergistic experimental/computational approach, whereby SMA particles exhibiting multi-physical magneto-mechanical coupling are physically processed at low volume fractions into structural components, their magnetic responses are characterized, and associated data are employed in the formulation/calibration of particle/matrix models at the continuum scale.
These models will consider the bulk response of SMA particles, their interface with the surrounding matrix, and the design of optimized particle shape, size, orientation, and distribution for the effective location of damage.
To design, fabricate, and characterize multifunctional high strength and self-sensing braided cables and structures using novel Fe-based shape memory alloys (SMAs).
- Design the optimized braided cable configuration that maximizes the load-bearing capabilities and superelastic response of the Fe-SMA wires.
- Design of the embedding strategy of cables in structural composites for crack detection.
- Fabrication of braided cables of Fe-SMAs.
- Characterize the mechanical response of the braided cable bundle and validate design optimization.
- Demonstration of structural health monitoring capability (Implementation)
- Demonstrate that changes in the magnetic response of the braided cable under load directly correlate with deflection and strain for structural health monitoring.
Working on project: Mirmilad Mirsayar and Allen Davis