scholarly journals Theoretical models of void nucleation and growth for ductile metals under dynamic loading: A review

2022 ◽  
Vol 7 (1) ◽  
pp. 018201
Author(s):  
Haonan Sui ◽  
Long Yu ◽  
Wenbin Liu ◽  
Ying Liu ◽  
Yangyang Cheng ◽  
...  
Keyword(s):  
Dynamic Loading ◽  
Void Nucleation ◽  
Theoretical Models ◽  
Nucleation And Growth ◽  
Ductile Metals ◽  
Void Nucleation And Growth

scholarly journals The Modified Void Nucleation and Growth Model (MNAG) for Damage Evolution in BCC Ta

2021 ◽  
Vol 11 (8) ◽  
pp. 3378
Author(s):  
Jie Chen ◽  
Darby J. Luscher ◽  
Saryu J. Fensin
Keyword(s):  
Growth Model ◽  
Damage Evolution ◽  
Volume Fraction ◽  
Void Nucleation ◽  
Nucleation And Growth ◽  
Void Coalescence ◽  
Hydrodynamic Simulations ◽  
Void Evolution ◽  
Void Nucleation And Growth ◽  
Nucleation Growth

A void coalescence term was proposed as an addition to the original void nucleation and growth (NAG) model to accurately describe void evolution under dynamic loading. The new model, termed as modified void nucleation and growth model (MNAG model), incorporated analytic equations to explicitly account for the evolution of the void number density and the void volume fraction (damage) during void nucleation, growth, as well as the coalescence stage. The parameters in the MNAG model were fitted to molecular dynamics (MD) shock data for single-crystal and nanocrystalline Ta, and the corresponding nucleation, growth, and coalescence rates were extracted. The results suggested that void nucleation, growth, and coalescence rates were dependent on the orientation as well as grain size. Compared to other models, such as NAG, Cocks–Ashby, Tepla, and Tonks, which were only able to reproduce early or later stage damage evolution, the MNAG model was able to reproduce all stages associated with nucleation, growth, and coalescence. The MNAG model could provide the basis for hydrodynamic simulations to improve the fidelity of the damage nucleation and evolution in 3-D microstructures.

4D X-ray tomography characterization of void nucleation and growth during deformation of strontium-added AZ31 alloys

2020 ◽  
Vol 797 ◽  
pp. 140081
Author(s):  
Javad Samei ◽  
Alireza Sadeghi ◽  
Hossein Mortezapour ◽  
Saeid Salavati ◽  
Maedeh Amirmaleki ◽  
...  
Keyword(s):  
Void Nucleation ◽  
Nucleation And Growth ◽  
X Ray ◽  
Void Nucleation And Growth

scholarly journals Void Nucleation, and Growth during Tensile Deformation of Nanoscale Precipitated Steel and Bainitic Steel

2019 ◽  
Vol 59 (7) ◽  
pp. 1362-1368
Author(s):  
Yasutaka Mugita ◽  
Masatoshi Aramaki ◽  
Masayuki Yamamoto ◽  
Akihisa Takeuchi ◽  
Miyuki Takeuchi ◽  
...  
Keyword(s):  
Tensile Deformation ◽  
Void Nucleation ◽  
Nucleation And Growth ◽  
Bainitic Steel ◽  
Void Nucleation And Growth

On the role of helium in void nucleation and growth

1983 ◽  
Vol 78 (1-4) ◽  
pp. 275-275 ◽  
Author(s):  
W. G. Wolfer ◽  
F. A. Garner
Keyword(s):  
Void Nucleation ◽  
Nucleation And Growth ◽  
Void Nucleation And Growth

Effect of Temperature on the Void Nucleation and Growth Parameters for Single Crystal Copper

2011 ◽  
Author(s):  
S. Rawat ◽  
Manoj Warrier ◽  
S. Chaturvedi ◽  
V. M. Chavan ◽  
Alka B. Garg ◽  
...  
Keyword(s):  
Single Crystal ◽  
Growth Parameters ◽  
Void Nucleation ◽  
Nucleation And Growth ◽  
Effect Of Temperature ◽  
Single Crystal Copper ◽  
Void Nucleation And Growth
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