NiTiCu Transverse to Axial Strain Ratio Analysis During Tension/Compression Tests. (2015)

• Record Type: Journal Article
• Authors: Fabregat-Sanjuan, A.; Ferrando, F.; De la Flor, S.
• Is Part Of: Materials today. Volume 2(2015)Supplement 3
• Page Start: S759
• Page End: S762
• Publication Date: 2015
• Subjects: Strain ratio -- Poisson -- asymmetry -- NiTiCu -- tension -- compression -- strain gauge -- rosette; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.07.393
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Tension-compression asymmetry in polycrystalline NiTiCu tubes was studied during elastic and transformation zone using strain gauges rosettes. Axial and transverse strain measurements from strain gauges were used to calculate a localized strain ratio through tensile and compression tests at different temperatures. The results show an asymmetric tension/compression behavior from stress-axial strain curves and from strain ratio-axial strain curves with a non constant strain ratio. Different temperatures tests also show similar values of strain ratio for martensite and austenite phases in the elastic zone.