scholarly journals Ductile damage model of an alluminum alloy: experimental and numerical validation on a punch test

2021 ◽  
Vol 9 (3) ◽  
pp. 249-260
Author(s):  
Marco Nicola Mastrone ◽  
Lorenzo Fraccaroli ◽  
Franco Concli
Keyword(s):  
Damage Model ◽  
Ductile Damage ◽  
Numerical Validation ◽  
Punch Test

Modeling of Solder Fatigue Failure due to Ductile Damage

2010 ◽  
Vol 26 (4) ◽  
pp. N23-N27 ◽  
Author(s):  
K. Aluru ◽  
F.-L. Wen ◽  
Y.-L. Shen
Keyword(s):  
Numerical Study ◽  
Fatigue Cracks ◽  
Damage Model ◽  
Quantitative Information ◽  
Ductile Damage ◽  
Element Analysis ◽  
Cyclic Shear ◽  
Rate Dependent ◽  
Solder Fatigue ◽  
Temporal And Spatial

ABSTRACTA numerical study is undertaken to simulate failure of solder joint caused by cyclic shear deformation. A progressive ductile damage model is incorporated into the rate-dependent elastic-viscoplastic finite element analysis, resulting in the capability of simulating damage evolution and eventual failure through crack formation. It is demonstrated that quantitative information of fatigue life, as well as the temporal and spatial evolution of fatigue cracks, can be explicitly obtained.

Prediction of Rupture in Gas Forming Process Using Continuum Damage Mechanic

2012 ◽  
Vol 463-464 ◽  
pp. 1047-1051
Author(s):  
M. Rahafrooz ◽  
M. Sanjari ◽  
M. Moradi ◽  
Danial Ghodsiyeh
Keyword(s):  
Metal Forming ◽  
Damage Mechanics ◽  
Damage Model ◽  
Simulation Software ◽  
Ductile Damage ◽  
Continuum Damage ◽  
Forming Process ◽  
Continuum Damage Mechanic ◽  
Damage Mechanic ◽  
Metal Forming Process

The Continuum Damage Mechanics is a branch of applied mechanics that used to predict the initiation of cracks in metal forming process. In this article, damage definition and ductile damage model are explained, and also ductile damage model is applied to predict initiation of fracture in gas metal forming process with ABAQUS/EXPLICIT simulation. In this method instead of punch, the force is applied by air pressure. In this study, first the ductile damage criterion and its relations are taken into account and, subsequently, the process of gas-aid formation process is put into consideration and ductile damage model for prediction of rupture area is simulated using ABAQUS simulation software. Eventually, the process of formation via gas on the aluminum with total thickness of 0.24 [mm] was experimentally investigated and the results acquired from experiment were compared with relating simulations. The effect of various parameters such as radius of edge matrix, gas pressure and blank temperature has been evaluated. Simulation was compared with experimental results and good agreement was observed.

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