title: On phase transformation behavior of porous Shape Memory Alloys.
abstract: This paper is concerned on the phase transformation mechanism of porous Shape Memory Alloys (SMAs). A unit-cell model is adopted to establish the constitutive relation for porous SMAs, the stress distributions, the phase distributions and the martensitic volume fractions for the model are then derived under both pure hydrostatic stress and uniaxial compression. Further, an example for the uniaxial response under compression for a porous Ni-Ti SMA material considering hydrostatic stress is supplied. Good agreement between the theoretical prediction of the proposed model and published experimental data is observed.
authors.affiliation: Institute of Mechanics, Beijing Jiaotong University, Beijing 100044, China.
authors.forename: Bingfei
authors.initials: B
authors.lastname: Liu
authors.forename: Guansuo
authors.initials: G
authors.lastname: Dui
authors.forename: Yuping
authors.initials: Y
authors.lastname: Zhu
mesh_terms: D000497:Alloys / Q000737:chemistry*; D006874:Hydrostatic Pressure; D055595:Mechanical Phenomena; D008962:Models, Theoretical; D009532:Nickel / Q000737:chemistry*; D016062:Porosity; D014025:Titanium / Q000737:chemistry*
chemical_list: D000497:Alloys; D009532:Nickel; D014025:Titanium