Mechanical behaviour and phase transition mechanisms of a shape memory alloy by means of a novel analytical model

• Autorzy: Carpinteri A. , Di Cocco V. , Fortese G. , Ronchei C. , Scorza D. , Vantadori S. , Zanichelli A. , Iacoviello F. , Natali S.

Identyfikatory

DOI

10.2478/ama-2018-0017

• Języki publikacji: EN

Abstrakty

EN

The aim of the present paper is to examine both the fatigue behaviour and the phase transition mechanisms of an equiatomic pseudo-elastic NiTi Shape Memory Alloy through cyclic tests (up to 100 loading cycles). More precisely, miniaturised dog-bone specimens are tested by using a customised testing machine and the contents of both austenite and martensite phase are experimentally measured by means of X-Ray diffraction (XRD) analyses. On the basis of such experimental results in terms of martensite content, an analytical model is here formulated to correlate the stress-strain relationship to the phase transition mechanisms. Finally, a validation of the present model by means of experimental data pertaining the stress-strain relationship is performed.

Słowa kluczowe

EN

fatigue behaviour; phase transition mechanisms; shape memory alloy; tensile cyclic test; X-ray diffraction analysis

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2018
• Tom: Vol. 12, no. 2
• Strony: 105--108
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Carpinteri A.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Di Cocco V.

• Department of Civil and Mechanical Engineering University of Cassino and Lazio Meridionale, Via G. Di Biasio 43, 03043 Cassino (FR), Italy

autor

Fortese G.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Ronchei C.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Scorza D.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Vantadori S.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Zanichelli A.

• Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

autor

Iacoviello F.

• Department of Civil and Mechanical Engineering University of Cassino and Lazio Meridionale, Via G. Di Biasio 43, 03043 Cassino (FR), Italy

autor

Natali S.

• Department Chemical Engineering Materials Environment, University of Roma “La Sapienza”, via Eudossiana 18, 00184 Rome, Italy

Bibliografia

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