Effect of loading rate on fracture mechanics of NiTi SMA

• Published in: International journal of fracture Vol. 224; no. 2; pp. 151 - 165
• Main Authors: Mutlu, Fatma, Anlaş, Günay, Moumni, Ziad
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.08.2020; Springer Nature B.V; Springer Verlag
• Subjects: Automotive Engineering; Characterization and Evaluation of Materials; Chemistry and Materials Science; Civil Engineering; Classical Mechanics; Compact tension; Crack tips; Digital imaging; Displacement; Engineering Sciences; Finite element method; Fracture mechanics; Fractures; Intermetallic compounds; Loading rate; Martensite; Martensitic transformations; Materials Science; Mathematical analysis; Mechanical Engineering; Nickel base alloys; Nickel titanides; Original Paper; Phase transitions; Plane stress; Shape memory alloys; Strain localization; Stress intensity factors; Superelasticity; Temperature gradients; Thermomechanical coupling; Fracture; Shape memory alloys; Loading rate; DIC

Superelastic NiTi shape memory alloy is characterized by phase transformation under loading. In this work, the effect of loading rate on fracture mechanics of NiTi is investigated. First, to characterize the behavior of the material, tensile experiments are conducted on dog-bone specimens at differe...