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RESEARCH PRODUCT
Prediction of Ductile Fractures in Metal-Forming Processes: an Approach Based on the Damage Mechanics
N. AlbertiFabrizio MicariL. CannizzaroA. Barcellonasubject
Materials scienceComputer simulationbusiness.industryMechanical EngineeringNumerical analysisConstitutive equationStructural engineeringCritical valueIndustrial and Manufacturing EngineeringForgingDamage mechanicsDeformation (engineering)businessTensile testingdescription
The Authors propose a new approach for the prediction of ductile fractures in bulk metal forming processes: the approach is based on a numerical analysis able to take into account damage occurrence and evolution in constitutive equations. The model supplies the distribution of the void volume fraction in the workpiece during the deformation path: consequently, the comparison to a critical value, determined by means of a simple tension test, allows to predict the growth of defects. The proposed approach has been applied to the drawing process: the numerical results have been compared with a set of experimental tests showing a good predictive capability of the model.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 | CIRP Annals |