Experimental and FEM Analysis of the Fracture Behavior in NiTi Shape Memory Alloys

2006 ◽  
pp. 919-922 ◽  
Author(s):  
Xin Mei Wang ◽  
Zhu Feng Yue
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Fracture Behavior ◽  
Fem Analysis ◽  
Niti Shape Memory Alloys

Experimental and FEM Analysis of the Fracture Behavior in NiTi Shape Memory Alloys

2006 ◽  
Vol 324-325 ◽  
pp. 919-922 ◽  
Author(s):  
Xin Mei Wang ◽  
Zhu Feng Yue
Keyword(s):  
Fracture Toughness ◽  
Phase Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Fracture Behavior ◽  
Micromechanical Model ◽  
Crack Tip ◽  
Fem Analysis ◽  
Transformation Behavior ◽  
Niti Shape Memory Alloys

In the present work, the fracture toughness of a NiTi pseudoelastic alloy has been obtained by experiments on CT specimens, which is KIC =39.38MPa·m1/2. Then the stress induced phase transformation behavior in front of the crack tip of the CT specimen is simulated by a micromechanical model considering the different elastic properties between martensite and austenite. The results show that the pre-crack promotes phase transformation at the crack tip. And the phase transformation is localised near the crack tip. It is also shown that phase transformation reduces the Mises stress around the crack tip.

Fracture behavior of the compact tension specimens in NiTi shape memory alloys

2008 ◽  
Vol 485 (1-2) ◽  
pp. 14-19 ◽  
Author(s):  
Xinmei Wang ◽  
Baoxing Xu ◽  
Zhufeng Yue ◽  
Xiaoyan Tong
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Fracture Behavior ◽  
Compact Tension ◽  
Niti Shape Memory Alloys

Vacuum induction melting of NiTi shape memory alloys in graphite crucible

2007 ◽  
Vol 465 (1-2) ◽  
pp. 44-48 ◽  
Author(s):  
Niraj Nayan ◽  
Govind ◽  
C.N. Saikrishna ◽  
K. Venkata Ramaiah ◽  
S.K. Bhaumik ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Graphite Crucible ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Niti Shape Memory Alloys

Improvement of Mechanical Properties of Powder Metallurgical NiTi Shape Memory Alloys

2006 ◽  
Vol 8 (4) ◽  
pp. 247-252 ◽  
Author(s):  
J. Mentz ◽  
M. Bram ◽  
H. P. Buchkremer ◽  
D. Stöver
Keyword(s):  
Mechanical Properties ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Niti Shape Memory Alloys
Sign in / Sign up

Export Citation Format

Share Document