Abstract
Many problems have existed in usage of shape memory alloy (SMA) such as the appearance of unexpected deformation behavior under complicated thermo-mechanical loadings. Inhomogeneous deformation behavior of SMA is one of the causes in those problems. The aim of the present paper is the investigation of inhomogeneous deformation behavior arising in SMA during cyclic loading. Firstly, a test system measuring inhomogeneous deformation behavior was constructed on the basis of Digital Image Correlation (DIC). Secondary, measurements of inhomogeneous deformation behavior (local strain distribution) arising in 50.5Ni49.5Ti plates were conducted during cyclic tensile loading-unloading at the temperature region of pseudoelasticity. It was seen that inhomogeneous deformation behavior sensitively changed according to state of loading (i.e., number of cycle, history of loading and so on). Also, macroscopic deformation behavior was strongly affected by inhomogeneous deformation behavior. It is very important for application of SMA to investigate the relationship between macroscopic deformation behavior and inhomogeneous deformation behavior.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
