scholarly journals Non associated-anisotropic plasticity model fully coupled with isotropic ductile damage for sheet metal forming applications

2019 ◽  
Vol 166 ◽  
pp. 96-111 ◽  
Author(s):  
O. Ghorbel ◽  
S. Koubaa ◽  
J. Mars ◽  
M. Wali ◽  
F. Dammak
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Ductile Damage ◽  
Plasticity Model ◽  
Anisotropic Plasticity ◽  
Fully Coupled

Explicit and implicit springback simulation in sheet metal forming using fully coupled ductile damage and distortional hardening model

2018 ◽  
Author(s):  
M. Yetna n’jock ◽  
B. Houssem ◽  
C. Labergere ◽  
K. Saanouni ◽  
Y. Zhenming
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Ductile Damage ◽  
Hardening Model ◽  
Fully Coupled

scholarly journals Simulation of Sheet Metal Forming Processes Using a Fully Rheological-Damage Constitutive Model Coupling and a Specific 3D Remeshing Method

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 991 ◽  
Author(s):  
Abel Cherouat ◽  
Houman Borouchaki ◽  
Zhang Jie
Keyword(s):  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Constitutive Equations ◽  
Metal Forming ◽  
Damage Mechanics ◽  
Three Dimensions ◽  
Automatic Process ◽  
Adaptive Remeshing ◽  
Fully Coupled

Automatic process modeling has become an effective tool in reducing the lead-time and the cost for designing forming processes. The numerical modeling process is performed on a fully coupled damage constitutive equations and the advanced 3D adaptive remeshing procedure. Based on continuum damage mechanics, an isotropic damage model coupled with the Johnson–Cook flow law is proposed to satisfy the thermodynamic and damage requirements in metals. The Lemaitre damage potential was chosen to control the damage evolution process and the effective configuration. These fully coupled constitutive equations have been implemented into a Dynamic Explicit finite element code Abaqus using user subroutine. On the other hand, an adaptive remeshing scheme in three dimensions is established to constantly update the deformed mesh to enable tracking of the large plastic deformations. The quantitative effects of coupled ductile damage and adaptive remeshing on the sheet metal forming are studied, and qualitative comparison with some available experimental data are given. As illustrated in the presented examples this overall strategy ensures a robust and efficient remeshing scheme for finite element simulation of sheet metal‐forming processes.

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