Ductile Damage Prediction in Taylor Impact Cylinder Test Using CDM Approach

A one-dimensional analysis of the Taylor impact test [4] has been used to estimate the quasi-static stress for several different alloys. One criticism of this work was the use of Taylor cylinder test data to estimate the quasi-static true stress/true strain compression diagram. The one-dimensional theory does accommodate this estimate. The purpose of this paper is to demonstrate that this process leads to acceptable results by analyzing a series of high, medium, and low strength materials.

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A micromechanical model for inelastic ductile damage prediction in polycrystalline metals for metal forming

International Journal of Mechanical Sciences ◽

10.1016/j.ijmecsci.2009.03.014 ◽

2009 ◽

Vol 51 (6) ◽

pp. 453-464 ◽

Cited By ~ 32

Author(s):

M. Boudifa ◽

K. Saanouni ◽

J.-L. Chaboche

Keyword(s):

Metal Forming ◽

Micromechanical Model ◽

Ductile Damage ◽

Damage Prediction ◽

Polycrystalline Metals

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

International Journal of Damage Mechanics ◽

10.1177/1056789520958045 ◽

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.

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Ductile damage prediction in sheet and bulk metal forming

Comptes Rendus Mécanique ◽

10.1016/j.crme.2015.11.006 ◽

2016 ◽

Vol 344 (4-5) ◽

pp. 296-318 ◽

Cited By ~ 12

Author(s):

Houssem Badreddine ◽

Carl Labergère ◽

Khemais Saanouni

Keyword(s):

Metal Forming ◽

Ductile Damage ◽

Bulk Metal ◽

Damage Prediction ◽

Bulk Metal Forming

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Taylor Cylinder Test Reduction Using a One-Dimensional Theory

Volume 4: Fluid-Structure Interaction ◽

10.1115/pvp2008-61153 ◽

2008 ◽

Author(s):

Rachel Russo ◽

Bart Baker ◽

Nicholas Dutton ◽

Karen Torres ◽

Stanley E. Jones

Keyword(s):

Dimensional Analysis ◽

Test Data ◽

Impact Test ◽

True Strain ◽

True Stress ◽

Dimensional Theory ◽

One Dimensional ◽

Cylinder Test ◽

Taylor Impact ◽

The One

A one-dimensional analysis of the Taylor impact test [4] has been used to estimate the quasi-static stress for several different alloys. One criticism of this work was the use of Taylor cylinder test data to estimate the quasi-static true stress/true strain compression diagram. The one-dimensional theory does accommodate this estimate. The purpose of this paper is to demonstrate that this process leads to acceptable results by analyzing a series of high, medium, and low strength materials.

Download Full-text