A Micromechanical Model for Inelastic Ductile Damage Prediction in Polycrystalline Metals

2009 ◽  
Author(s):  
M. Boudifa ◽  
K. Saanouni ◽  
J.-L. Chaboche
Keyword(s):  
Micromechanical Model ◽  
Ductile Damage ◽  
Damage Prediction ◽  
Polycrystalline Metals

Ductile damage prediction of AA 5754 sheet during cold forming condition

2020 ◽  
Vol 34 (10) ◽  
pp. 4219-4228
Author(s):  
Mohamed Amer ◽  
Mostafa Shazly ◽  
Mohamed Mohamed ◽  
Abdel Aziz Hegazy
Keyword(s):  
Ductile Damage ◽  
Cold Forming ◽  
Damage Prediction ◽  
Forming Condition

Enhanced CDM model accounting of stress triaxiality and Lode angle for ductile damage prediction in metal forming

2020 ◽  
pp. 105678952095804
Author(s):  
Kai Zhang ◽  
Houssem Badreddine ◽  
Naila Hfaiedh ◽  
Khemais Saanouni ◽  
Jianlin Liu
Keyword(s):  
Constitutive Equations ◽  
Damage Model ◽  
Stress Triaxiality ◽  
Ductile Damage ◽  
Irreversible Processes ◽  
State Variables ◽  
Damage Prediction ◽  
Proposed Model ◽  
Lode Angle ◽  
Fully Coupled

This paper deals with the prediction of ductile damage based on CDM approach fully coupled with advanced elastoplastic constitutive equations. This fully coupled damage model is developed based on the total energy equivalence assumption under the thermodynamics of irreversible processes framework with state variables. In this model, the damage evolution is enhanced by accounting for both stress triaxiality and Lode angle. The proposed constitutive equations are implemented into Finite Element (FE) code ABAQUS/Explicit through a user material subroutine (VUMAT). The material parameters are determined by the hybrid experimental-numerical method using various tensile and shear tests. Validation of the proposed model has been done using different tests of two aluminum alloys (Al6061-T6 and Al6014-T4). Through comparisons of numerical simulations with experimental results for different loading paths, the predictive capabilities of the proposed model have been shown. The model is found to be able to capture the initiation as well as propagation of macro-crack in sheet and bulk metals during their forming processes.

scholarly journals Ductile damage prediction in sheet and bulk metal forming

2016 ◽  
Vol 344 (4-5) ◽  
pp. 296-318 ◽  
Author(s):  
Houssem Badreddine ◽  
Carl Labergère ◽  
Khemais Saanouni
Keyword(s):  
Metal Forming ◽  
Ductile Damage ◽  
Bulk Metal ◽  
Damage Prediction ◽  
Bulk Metal Forming

Ductile Damage Prediction on the Basis of Microstructural Observations

2003 ◽  
Vol 251-252 ◽  
pp. 351-356 ◽  
Author(s):  
Ulrich Prahl ◽  
Werner Rehbach ◽  
Claudia Kuckertz ◽  
Dieter Weichert ◽  
Wolfgang Bleck
Keyword(s):  
Ductile Damage ◽  
Damage Prediction

Inverse vs Incremental Numerical Approaches for Ductile Damage Prediction in Sheet Metal Forming

2004 ◽  
Vol 7 (1-2) ◽  
pp. 99-122 ◽  
Author(s):  
Abdelhakim Cherouat ◽  
Ying Qiao Guo ◽  
Khémaïs Saaouni ◽  
Yu Ming Li ◽  
Karl Debray ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Ductile Damage ◽  
Damage Prediction ◽  
Numerical Approaches
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