scholarly journals The effect of specimen dimensions on the propensity to adiabatic shear failure in Kolsky bar experiments

2010 ◽  
Vol 15 (2) ◽  
pp. 283-290 ◽  
Author(s):  
Zvi Rosenberg ◽  
Yechezkel Ashuach ◽  
Rafael Kreif
Keyword(s):  
Shear Failure ◽  
Kolsky Bar ◽  
Adiabatic Shear ◽  
Kolsky Bar Experiments

scholarly journals On thermal softening and adiabatic shear failure of dynamically compressed metallic specimens in the Kolsky bar system

2014 ◽  
Vol 372 (2015) ◽  
pp. 20130293 ◽  
Author(s):  
Z. Rosenberg ◽  
Y. Ashuach
Keyword(s):  
Magnesium Alloys ◽  
Shear Failure ◽  
Thermal Softening ◽  
Kolsky Bar ◽  
Adiabatic Shear ◽  
New Approach ◽  
Threshold Temperatures ◽  
Steep Decrease ◽  
Instability Strain

The issues of thermal softening and adiabatic shear failure, in dynamically compressed metals, are revisited through experiments in the Kolsky bar system. Various materials were compressed by single- and multi-step loadings and the results were analysed through a new approach to the issue of instability strain, which is based on the temperatures existing in the specimens just prior to the onset of instability. These temperatures are compared with the threshold temperatures, which mark the steep decrease in the strength–temperature curves. This approach accounts for most of the materials we tested. However, the brittle behaviour of the titanium and magnesium alloys, which fail at a very low strain, should be treated by a different approach.

Some experiments on adiabatic shear failure

2006 ◽  
Vol 134 ◽  
pp. 835-838 ◽  
Author(s):  
D. Rittel ◽  
Z. G. Wang ◽  
M. Merzer
Keyword(s):  
Shear Failure ◽  
Adiabatic Shear

Adiabatic shear failure under biaxial dynamic compression/ shear loading

1994 ◽  
Vol 17 (2-3) ◽  
pp. 203-214 ◽  
Author(s):  
L.W. Meyer ◽  
E. Staskewitsch ◽  
A. Burblies
Keyword(s):  
Shear Failure ◽  
Dynamic Compression ◽  
Shear Loading ◽  
Adiabatic Shear

Modeling adiabatic shear failure from energy considerations

2010 ◽  
Vol 58 (11) ◽  
pp. 1759-1775 ◽  
Author(s):  
M. Dolinski ◽  
D. Rittel ◽  
A. Dorogoy
Keyword(s):  
Shear Failure ◽  
Adiabatic Shear

The influence of temper condition on adiabatic shear failure of AA 2024 aluminum alloy

2017 ◽  
Vol 708 ◽  
pp. 492-502 ◽  
Author(s):  
A.A. Tiamiyu ◽  
A.Y. Badmos ◽  
A.G. Odeshi ◽  
J.A. Szpunar
Keyword(s):  
Aluminum Alloy ◽  
Shear Failure ◽  
Adiabatic Shear ◽  
2024 Aluminum Alloy ◽  
Aa 2024

Inspection of Adiabatic Shear Bands in High Manganese TRIP Steels

2013 ◽  
Vol 753 ◽  
pp. 72-75 ◽  
Author(s):  
Hui Zhen Wang ◽  
Xiu Rong Sun ◽  
Ping Yang ◽  
Wei Min Mao
Keyword(s):  
Shear Failure ◽  
High Strain ◽  
Shear Bands ◽  
Adiabatic Shear ◽  
Strain Rates ◽  
Trip Effect ◽  
Adiabatic Shear Bands ◽  
High Manganese ◽  
High Strain Rates ◽  
Trip Steels

Adiabatic shear bands (ASBs) develop generally during high strain rates. This paper investigates the transformation induced plasticity (TRIP) effect during ASBs formation at high strain rates in high manganese TRIP steels containing initial austenite and ferrite by EBSD technique. Results show that TRIP effect takes place mainly before the formation of ASBs. After ASBs formation, TRIP effect is strongly restricted by the size effect, the increase of stacking fault energy (SFE) and even inverse martensitic transformation due to the rise of temperature. The TRIP effect before ASBs formation contributes to the resistance of adiabatic shear failure. Dynamic recrystallization driven by subgrains rotation occurs within ASBs, and ultrafine grains often show strong shear textures with twin relationship owing to slip mechanism.

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