The Role of Thermomechanical Coupling in the Dynamic Behavior of Shape Memory Alloys

2001 ◽  
pp. 145-152 ◽  
Author(s):  
Olaf Heintze ◽  
Oliver Kastner ◽  
Harsimar-Singh Sahota ◽  
Stefan Seelecke
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Dynamic Behavior ◽  
Thermomechanical Coupling

Role of Si in Improving the Shape Recovery of FeMnSiCrNi Shape Memory Alloys

2011 ◽  
Vol 42 (8) ◽  
pp. 2153-2165 ◽  
Author(s):  
Bikas C. Maji ◽  
Madangopal Krishnan ◽  
Gouthama ◽  
R. K. Ray
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Shape Recovery

scholarly journals Role of applied stress level on the actuation fatigue behavior of NiTiHf high temperature shape memory alloys

2018 ◽  
Vol 153 ◽  
pp. 156-168 ◽  
Author(s):  
O. Karakoc ◽  
C. Hayrettin ◽  
D. Canadinc ◽  
I. Karaman
Keyword(s):  
High Temperature ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Applied Stress ◽  
Stress Level ◽  
Fatigue Behavior

A Phenomenological Description of the Thermomechanical Coupling and the Rate-dependent Behavior of Shape Memory Alloys

2009 ◽  
Vol 20 (14) ◽  
pp. 1675-1687 ◽  
Author(s):  
Paulo Cesar C. Monteiro ◽  
Marcelo A. Savi ◽  
Theodoro Antoun Netto ◽  
Pedro Manuel C. L. Pacheco
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Phenomenological Description ◽  
Thermomechanical Coupling ◽  
Rate Dependent ◽  
Dependent Behavior

scholarly journals Role of β(FeAl) nanoparticles in abnormal grain growth in the annealing of cast Cu-Al-Mn-Fe shape memory alloys

2020 ◽  
Vol 30 (4) ◽  
pp. 510-516
Author(s):  
Shuiyuan Yang ◽  
Xinyu Qing ◽  
Jixun Zhang ◽  
Lipeng Guo ◽  
Shen Hong ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Grain Growth ◽  
Abnormal Grain Growth

scholarly journals Role of grain size on the martensitic transformation and ultra-fast superelasticity in shape memory alloys

2015 ◽  
Vol 95 ◽  
pp. 37-43 ◽  
Author(s):  
Keith R. Morrison ◽  
Mathew J. Cherukara ◽  
Hojin Kim ◽  
Alejandro Strachan
Keyword(s):  
Grain Size ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory

On the Effect of Latent Heat on the Fracture Toughness of Pseudoelastic Shape Memory Alloys

2014 ◽  
Vol 81 (10) ◽  
Author(s):  
Theocharis Baxevanis ◽  
Chad M. Landis ◽  
Dimitris C. Lagoudas
Keyword(s):  
Fracture Toughness ◽  
Shape Memory Alloys ◽  
Energy Release Rate ◽  
Shape Memory ◽  
Energy Release ◽  
Latent Heat ◽  
Release Rate ◽  
Crack Tip ◽  
Thermomechanical Coupling ◽  
Adiabatic Conditions

A finite element analysis of steady-state crack growth in pseudoelastic shape memory alloys under the assumption of adiabatic conditions is carried out for plane strain, mode I loading. The crack is assumed to propagate at a critical level of the crack-tip energy release rate and the fracture toughness is obtained as the ratio of the far-field applied energy release rate to the crack-tip critical value. Results related to the influence of latent heat on the near-tip stress field and fracture toughness are presented for a range of parameters related to thermomechanical coupling. The levels of fracture toughness enhancement, associated with the energy dissipated by the transformed material in the wake of the growing crack, are found to be lower under adiabatic conditions than under isothermal conditions [Baxevanis et al., 2014, J. Appl. Mech., 81, 041005]. Given that in real applications of shape memory alloy (SMA) components the processes are usually not adiabatic, which is the case with the lowest energy dissipation during a cyclic loading–unloading process (hysteresis), it is expected that the actual level of transformation toughening would be higher than the one corresponding to the adiabatic case.

Role of magnetism on the martensitic transformation in Ni–Mn-based magnetic shape memory alloys

2012 ◽  
Vol 60 (2) ◽  
pp. 459-468 ◽  
Author(s):  
V. Sánchez-Alarcos ◽  
V. Recarte ◽  
J.I. Pérez-Landazábal ◽  
C. Gómez-Polo ◽  
J.A. Rodríguez-Velamazán
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Magnetic Shape Memory ◽  
Magnetic Shape Memory Alloys

Cyclic degradation in bamboo-like Fe–Mn–Al–Ni shape memory alloys — The role of grain orientation

2016 ◽  
Vol 114 ◽  
pp. 156-160 ◽  
Author(s):  
M. Vollmer ◽  
P. Krooß ◽  
M.J. Kriegel ◽  
V. Klemm ◽  
C. Somsen ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Grain Orientation ◽  
Cyclic Degradation
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