Implementation of Schoenfield-Wright Failure Criterion into a Three-Dimensional Adiabatic Shear Band Model in CTH

2004 ◽  
Author(s):  
Muge Fermen-Coker
Keyword(s):  
Shear Band ◽  
Failure Criterion ◽  
Adiabatic Shear Band ◽  
Three Dimensional ◽  
Adiabatic Shear ◽  
Band Model

Instability Analysis and Rate-Dependent Failure Criteria for Adiabatic Shear Band Propagation of Ti-6Al-4V

2011 ◽  
Vol 66-68 ◽  
pp. 135-139
Author(s):  
Li Ma ◽  
Jian Xin ◽  
Li Ke Wang ◽  
Ping Xu
Keyword(s):  
Shear Band ◽  
Strain Rate ◽  
Failure Criterion ◽  
Adiabatic Shear Band ◽  
Damage Mechanism ◽  
Adiabatic Shear ◽  
Propagation Path ◽  
Instability Analysis ◽  
Rate Dependent ◽  
Dependent Failure

Adiabatic shearing is a typical response of materials under high strain rate loading. Based on the instability analysis for the thermo-viscoplastic constitutive model, a new rate-dependent failure criterion is proposed, where the failure strain decreases with the increment in strain rate. Using the finite element simulation of the Mode-II impact problem for the titanium alloy Ti-6Al-4V, we verified the damage mechanism induced by adiabatic shear band (ASB) under this rate-dependent failure criterion. Also the ASB propagation path and the width of localized shear band are predicted, which is in a good agreement with experimental observation.

Observation of the microstructure in the adiabatic shear band of 7075 aluminum alloy

2010 ◽  
Vol 527 (15) ◽  
pp. 3529-3535 ◽  
Author(s):  
D.H. Li ◽  
Y. Yang ◽  
T. Xu ◽  
H.G. Zheng ◽  
Q.S. Zhu ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Shear Band ◽  
Adiabatic Shear Band ◽  
Adiabatic Shear ◽  
7075 Aluminum Alloy
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