Interactive Texture- and Finite-Element Simulation Including the Bauschinger Effect

2005 ◽  
Vol 495-497 ◽  
pp. 1523-1528 ◽  
Author(s):  
Tom Walde ◽  
Hermann Riedel
Keyword(s):  
Finite Element ◽  
Bauschinger Effect ◽  
Texture Evolution ◽  
Plastic Anisotropy ◽  
Rolling Process ◽  
Finite Element Code ◽  
Combined Model ◽  
Hardening Model ◽  
Texture Model ◽  
Element Simulation

In this paper we describe a rolling simulation considering the main sources of plastic anisotropy, namely the Bauschinger effect and crystallographic texture. For this purpose we coupled the VPSC-model of Lebensohn and Tomé [1] with the hardening model of Peeters et al. [2]. The combined model is implemented in the Finite-Element code ABAQUS/Explicit®. With the combination of finite-element method, VPSC-texture model and the hardening model a rolling process is simulated and the nfluence of the Bauschinger effect on the texture evolution is studied.

scholarly journals Multiscale Finite Element Simulation of Forming Processes Based on Crystal Plasticity

2014 ◽  
Vol 611-612 ◽  
pp. 545-552
Author(s):  
Komi Soho ◽  
Farid Abed Meraim ◽  
Xavier Lemoine ◽  
Hamid Zahrouni
Keyword(s):  
Finite Element ◽  
Crystal Plasticity ◽  
Texture Evolution ◽  
Constitutive Models ◽  
Rolling Process ◽  
Finite Element Software ◽  
Software Packages ◽  
Element Simulation ◽  
Coupling Strategy ◽  
Strain Paths

For the numerical simulation of sheet metal forming processes, the commercial finite element software packages are among the most commonly used. However, these software packages have some limitations; in particular, they essentially contain phenomenological constitutive models and thus do not allow accounting for the physical mechanisms of plasticity that take place at finer scales as well as the associated microstructure evolution. In this context, we propose to couple the Abaqus finite element code with micromechanical simulations based on crystal plasticity and a self-consistent scale-transition scheme. This coupling strategy will be applied to the simulation of rolling processes, at different reduction rates, in order to estimate the evolution of the mechanical properties. By following some appropriately selected strain paths (i.e., strain lines) along the rolling process, one can also predict the texture evolution of the material as well as other parameters related to its microstructure. Our numerical results are compared with experimental data in the case of ferritic steels produced by ArcelorMittal.

Three-Dimensional Finite Element Simulation of Electro and Stress Migration Effects in Interconnect Lines

1997 ◽  
Vol 473 ◽  
Author(s):  
Sven Rzepka ◽  
Matt A. Korhonen ◽  
Eicke R. Weber ◽  
Che-Yu Li
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Grain Structure ◽  
Finite Element Code ◽  
Fem Simulations ◽  
Line Segments ◽  
Element Simulation ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Interconnect Lines

ABSTRACTA tool for 3-D modeling of EM and SM in interconnect lines has been developed based on a commercial finite element code. After detailing the approach, we focus on the verification of the simulator by comparing the results of 1-D analytic and FEM simulations, and then we apply the simulator to interconnect line segments with a specified grain structure.

Simulation of Earing during Deep Drawing of bcc Steel by Use of a Texture Component Crystal Plasticity Finite Element Method

2005 ◽  
Vol 495-497 ◽  
pp. 1529-1534 ◽  
Author(s):  
Dierk Raabe ◽  
Franz Roters ◽  
Yan Wen Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crystal Plasticity ◽  
Texture Component ◽  
Numerical Study ◽  
Texture Evolution ◽  
Plastic Anisotropy ◽  
Crystal Plasticity Finite Element ◽  
Cup Drawing ◽  
Element Method

We present a numerical study on the influence of crystallographic texture on the earing behavior of a low carbon steel during cup drawing. The simulations are conducted by using the texture component crystal plasticity finite element method which accounts for the full elastic-plastic anisotropy of the material and for the explicit incorporation of texture including texture update. Several important texture components that typically occur in commercial steel sheets were selected for the study. By assigning different spherical scatter widths to them the resulting ear profiles were calculated under consideration of texture evolution. The study reveals that 8, 6, or 4 ears can evolve during cup drawing depending on the starting texture. An increasing number of ears reduces the absolute ear height. The effect of the orientation scatter width (texture sharpness) on the sharpness of the ear profiles was also studied. It was observed that an increase in the orientation scatter of certain texture components entails a drop in ear sharpness while for others the effect is opposite.

scholarly journals Experimental and Finite Element Analysis of Asymmetric Rolling of 6061 Aluminum Alloy Using Two-Scale Elasto-Plastic Constitutive Relation

2017 ◽  
Vol 62 (4) ◽  
pp. 1991-1999 ◽  
Author(s):  
M. Wronski ◽  
K. Wierzbanowski ◽  
S. Wronski ◽  
B. Bacroix ◽  
P. Lipinski
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Plastic Anisotropy ◽  
Rolling Process ◽  
Sample Thickness ◽  
Constitutive Law ◽  
Scale Model ◽  
Asymmetric Rolling ◽  
Element Analysis ◽  
6061 Aluminum Alloy

AbstractThe goal of this work was theoretical and experimental study of micro- and macroscopic mechanical fields of 6061 aluminum alloy induced by the asymmetric rolling process. Two-scale constitutive law was used by implementing an elasto-plastic self-consistent scheme into the Finite Element code (ABAQUS/Explicit). The model was applied to study the asymmetric rolling. Such a deformation process induces heterogeneous mechanical fields that were reproduced by the model thanks to the crystallographic nature of constitutive law used. The studied material was processed, at room temperature, in one rolling pass to 36% reduction. The resulting material modifications were compared with predictions of the two-scale model. Namely, the calculated textures were compared with experimental ones determined by X-ray diffraction. Especially, detailed quantitative analysis of texture variation across the sample thickness was done. The influence of this texture variation on plastic anisotropy was studied. The advantages of asymmetric rolling process over symmetric one were identified. The main benefits are a nearly homogeneous crystallographic texture, reduced rolling normal forces and homogenization of plastic anisotropy through the sample thickness.

Three-dimensional thermo-mechanical finite element simulation of the vertical–horizontal rolling process

2001 ◽  
Vol 110 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Xiong Shangwu ◽  
Liu Xianghua ◽  
Wang Guodong ◽  
P.A.F. Martins ◽  
Jiao Sihai ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Three Dimensional ◽  
Rolling Process ◽  
Element Simulation

Rigid-Plastic Finite Element Simulation of Deformation Mechanisms during Rolling of Complex Sheets Containing an Inclusion

2006 ◽  
Vol 306-308 ◽  
pp. 483-488 ◽  
Author(s):  
Dyi Cheng Chen
Keyword(s):  
Finite Element ◽  
Rolling Process ◽  
Deformation Mechanisms ◽  
Damage Factor ◽  
Rigid Plastic ◽  
Sheet Rolling ◽  
Friction Factors ◽  
Element Simulation ◽  
Simulation Results ◽  
Roll Gap

Using rigid-plastic finite element DEFORMTM 2D software, this study simulates the plastic deformation of complex sheets at the roll gap during the sheet rolling process. Specifically, the study addresses the deformation of complex sheets containing inclusion defects. Under various rolling conditions, the present numerical analysis investigates the damage factor distributions, the void length at the front and rear of the inclusion, the deformation mechanisms, and the stress-strain distributions around the inclusion. The relative influences of the thickness reduction, the roll radii, and the friction factors on the void length at the front and rear of the inclusion, respectively, are systematically examined. Additionally, the correlation between the front and rear void lengths and a series of damage factors is explored. The simulation results appear to verify the suitability of the DEFORMTM 2D software for modeling the rolling of complex sheets containing inclusions.

Finite element simulation of a cross rolling process

2016 ◽  
Vol 24 ◽  
pp. 283-292 ◽  
Author(s):  
Matruprasad Rout ◽  
Surjya K. Pal ◽  
Shiv B. Singh
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Rolling Process ◽  
Cross Rolling ◽  
Element Simulation

PREDICTION OF FORMABILITY FOR MAGNESIUM ALLOY SHEET USING FINITE ELEMENT POLYCRYSTAL MODEL

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4335-4340
Author(s):  
SUNG YEUN WON ◽  
BONG SUN YOU ◽  
YOUNG SUK KIM ◽  
SEUNG HAN YANG
Keyword(s):  
Finite Element ◽  
Yield Surface ◽  
Deep Drawing ◽  
Bauschinger Effect ◽  
Rolling Process ◽  
Alloy Sheet ◽  
Biaxial Strain ◽  
Simulation Results ◽  
Cup Drawing ◽  
Strain Direction

In this study, in order to analyze deformation mechanism in rolling process and predict its yield surface finite element polycrystal model (FEPM) has been developed. Also numerical simulations for deep drawing process of AZ31 magnesium sheet were conducted at elevated temperature. Numerical simulation results for rolling process were compared with experiments of pole figure. For yield surface, the results indicated shift of yield surface along the biaxial strain direction denoting Bauschinger effect and strong anisotropic which is advantageous to deep drawing. Simulation results for limiting drawing ration (LDR) in cup drawing simulation agreed well with experimental observations.

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