Mechanical fatigue and fracture of Nitinol

SW Robertson, AR Pelton… - International Materials …, 2012 - journals.sagepub.com
Nitinol, a near equiatomic intermetallic of nickel and titanium, is the most widely known and
used shape memory alloy. Owing to its capacity to undergo a thermal or stress induced …

A review of modeling techniques for advanced effects in shape memory alloy behavior

C Cisse, W Zaki, TB Zineb - Smart Materials and Structures, 2016 - iopscience.iop.org
The paper reviews and discusses various techniques used in the literature for modeling
complex behaviors observed in shape memory alloys (SMAs) that go beyond the core …

Phase field modelling of fracture and fatigue in Shape Memory Alloys

M Simoes, E Martínez-Pañeda - Computer Methods in Applied Mechanics …, 2021 - Elsevier
We present a new phase field framework for modelling fracture and fatigue in Shape
Memory Alloys (SMAs). The constitutive model captures the superelastic behaviour of SMAs …

Fatigue and durability of Nitinol stents

AR Pelton, V Schroeder, MR Mitchell, XY Gong… - Journal of the …, 2008 - Elsevier
Nitinol self-expanding stents are effective in treating peripheral artery disease, including the
superficial femoral, carotid, and renal arteries. However, fracture occurrences of up to 50 …

Fracture mechanics and microstructure in NiTi shape memory alloys

S Gollerthan, ML Young, A Baruj, J Frenzel… - Acta Materialia, 2009 - Elsevier
Crack extension under static loading in pseudoplastic and pseudoelastic binary NiTi shape
memory alloy (SMA) compact tension (CT) specimens was examined. Two material …

Sheet sensor using SrAl2O4: Eu mechanoluminescent material for visualizing inner crack of high-pressure hydrogen vessel

Y Fujio, CN Xu, Y Terasawa, Y Sakata… - International Journal of …, 2016 - Elsevier
A new non-destructive evaluation technique to detect cracks emanating from the inner
surface (inner cracks) of a high-pressure hydrogen storage cylinder was developed by …

Phase volume fractions and strain measurements in an ultrafine-grained NiTi shape-memory alloy during tensile loading

ML Young, MFX Wagner, J Frenzel, WW Schmahl… - Acta Materialia, 2010 - Elsevier
An ultrafine-grained pseudoelastic NiTi shape-memory alloy wire with 50.9 at.% Ni was
examined using synchrotron X-ray diffraction during in situ uniaxial tensile loading (up to …

Combined effects of grain size and training on fatigue resistance of nanocrystalline NiTi shape memory alloy wires

P Chen, X Cai, Y Liu, Z Wang, M **, X ** - International Journal of Fatigue, 2023 - Elsevier
The structural fatigue life of nanocrystalline NiTi wires with grain size ranging from 53 nm to
125 nm was improved by stress-controlled mechanical training and the percentage of the …

Effect of microstructure on fatigue of superelastic NiTi wires

O Tyc, O Molnarova, P Šittner - International Journal of Fatigue, 2021 - Elsevier
NiTi wires, having different nanocrystalline microstructures, were subjected to superelastic
fatigue tests in a wide temperature range, and lattice defects accumulating during tensile …

[HTML][HTML] Mechanical behaviors and biomedical applications of shape memory materials: A review

C Wen, X Yu, W Zeng, S Zhao, L Wang… - AIMS Materials …, 2018 - aimspress.com
A shape memory material (shape memory alloy (SMA) or shape memory polymer (SMP))
can experience large deformation and recover its original shape when exposed to a specific …