Experimental study on Fe-SMA-to-steel adhesively bonded interfaces using DIC
Wandong Wang, Ardalan Hosseini, Elyas Ghafoori
Abstract
This study aimed to reveal the interface behavior of iron-based shape memory alloy (Fe-SMA) strips bonded to metallic substrates in order to ensure the integrity of such joints. A series of single lap-shear tests was performed on Fe-SMA-to-steel adhesively bonded joints. The test results reveal that the bond strength can reach over 70% of the tensile strength of the Fe-SMA and the cohesive failure mode can be realized. It is identified that three energy dissipation mechanisms occurred during the debonding process, indicating that the experimentally obtained bond-slip relations represent more than the energy dissipation by the failure of the adhesive.
Topics & Concepts
Materials scienceSMA*DissipationComposite materialShape-memory alloyAdhesiveFailure mode and effects analysisStructural engineeringSlip (aerodynamics)Bond strengthShear (geology)Ultimate tensile strengthLayer (electronics)MathematicsPhysicsEngineeringCombinatoricsThermodynamicsShape Memory Alloy TransformationsStructural Behavior of Reinforced ConcreteMasonry and Concrete Structural Analysis