scholarly journals Measurement of Inhomogeneous Deformation Behavior Arising in Shape Memory Alloy

2004 ◽  
Vol 53 (9) ◽  
pp. 999-1005 ◽  
Author(s):  
Go MURASAWA ◽  
Makoto KOUSHINBOU ◽  
Satoru YONEYAMA ◽  
Toshio SAKUMA ◽  
Masahisa TAKASHI
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Inhomogeneous Deformation

Measurement of Inhomogeneous Deformation Behavior arising in Shape Memory Alloy

2003 ◽  
Vol 2003.1 (0) ◽  
pp. 277-278
Author(s):  
Makoto Koushinbou ◽  
Go Murasawa ◽  
Satoru Yoneyama ◽  
Masahisa Takashi ◽  
Toshio Sakuma
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Inhomogeneous Deformation

scholarly journals Study of the deformation behavior and structure formation of Ti-Zr-Nb shape memory alloy

2021 ◽  
Vol 1008 ◽  
pp. 012042
Author(s):  
V A Sheremetyev ◽  
O Akhmadkulov ◽  
V S Komarov ◽  
A V Korotitsky ◽  
S P Galkin ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Structure Formation ◽  
Deformation Behavior

Complex transformation field created by geometrical gradient design of NiTi shape memory alloy

2017 ◽  
Vol 10 (01) ◽  
pp. 1740011 ◽  
Author(s):  
Reza Bakhtiari ◽  
Bashir S. Shariat ◽  
Fakhrodin Motazedian ◽  
Zhigang Wu ◽  
Junsong Zhang ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Stress Gradient ◽  
Tensile Loading ◽  
Niti Shape Memory Alloy ◽  
Mechanical Behaviors ◽  
Modeling Framework ◽  
Complex Transformation ◽  
Pseudoelastic Behavior

Owing to geometrical non-uniformity, geometrically graded shape memory alloy (SMA) structures by design have the ability to exhibit different and novel thermal and mechanical behaviors compared to geometrically uniform conventional SMAs. This paper reports a study of the pseudoelastic behavior of geometrically graded NiTi plates. This geometrical gradient creates partial stress gradient over stress-induced martensitic transformation, providing enlarged stress controlling interval for shape memory actuation. Finite element modeling framework has been established to predict the deformation behavior of such structures in tensile loading cycles, which was validated by experiments. The modeling results show that the transformation mostly propagates along the gradient direction as the loading level increases.

Influence of matrix systems on the deformation behavior of adaptive fiber-reinforced plastics

2020 ◽  
pp. 152808372092701
Author(s):  
Moniruddoza Ashir ◽  
Chokri Cherif
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Matrix Material ◽  
Mixing Ratio ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Bending Modulus ◽  
Hybrid Yarn ◽  
Fiber Reinforced Plastics

Adaptive structures contain actuators that enable the controlled modification of system states and characteristics. Furthermore, their geometric configuration as well as physical properties can be varied purposefully. The geometric configuration of adaptive fiber-reinforced plastics can be changed by varying the bending modulus of the matrix material. Hence, this research work presents the influence of thermosetting matrix material with different bending moduli on the deformation behavior of adaptive fiber-reinforced plastics. Firstly, shape memory alloys were converted into shape memory alloy hybrid yarn in order to realize this goal. Subsequently, shape memory alloy hybrid yarn was textile-technically integrated into reinforcing fabrics by means of weaving technology. The bending modulus of the thermosetting matrix material was changed by mixing modifier into it. The Seemann Corporation Resin Infusion Molding Process was used for infusion. Later, the deformation behavior of adaptive fiber-reinforced plastics was characterized. Results revealed that the maximum deformations of adaptive fiber-reinforced plastics with resin and modifier at a mixing ratio of 9:1 and 8:2 were increased to 34% and 63%, respectively, compared to adaptive fiber-reinforced plastics infiltrated by the reference resin. The maximum deformation speed during heating and cooling of adaptive fiber-reinforced plastic with the mixing ratio of resin and modifier at a value of 8:2 were 41.17 mm/s and 26.89 mm/s, respectively.

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