Simulation of magnesium alloy AZ31 sheet during cylindrical cup drawing with rate independent crystal plasticity finite element method

2009 ◽  
Vol 46 (2) ◽  
pp. 393-399 ◽  
Author(s):  
Weiqin Tang ◽  
Shaorui Zhang ◽  
Yinghong Peng ◽  
Dayong Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnesium Alloy ◽  
Crystal Plasticity ◽  
Crystal Plasticity Finite Element ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Az31 Sheet ◽  
Cylindrical Cup ◽  
Cup Drawing

Simulation of the Extrusion Texture of Magnesium Alloy AZ31 Using Crystal Plasticity Finite Element Method

2015 ◽  
Vol 817 ◽  
pp. 538-544 ◽  
Author(s):  
Yi Chuan Shao ◽  
Tao Tang ◽  
Da Yong Li ◽  
Ying Hong Peng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnesium Alloy ◽  
Crystal Plasticity ◽  
Reasonable Agreement ◽  
Material Point ◽  
Crystal Plasticity Finite Element ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Sheet Extrusion

By using Eulerian adaptive modeling approach, both the round extrusion and sheet extrusion of magnesium alloy AZ31 were simulated. Furthermore, the history strains of material point flowing through the Eulerian domain was extracted and used as the foundation for defining the boundary conditions in the crystal plasticity finite element (CPFE) modeling for the extrusion texture. By virtue of this modeling method, the realistic grain boundaries can be approximated by using a 3D polycrystal generator and the intra-granular interactions can be well described. Both of the simulated round extrusion and sheet extrusion textures of alloy AZ31 show reasonable agreement with experimental results.

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.

Warm deep drawing of magnesium alloy sheets — formability and process conditions

2008 ◽  
Vol 222 (11) ◽  
pp. 1347-1354 ◽  
Author(s):  
L M Ren ◽  
S H Zhang ◽  
G Palumbo ◽  
L Tricarico
Keyword(s):  
Finite Element ◽  
Magnesium Alloy ◽  
Process Parameters ◽  
Deep Drawing ◽  
Process Conditions ◽  
Geometrical Shape ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Warm Deep Drawing ◽  
Az31 Sheet

The influence of deformation conditions on the formability of magnesium alloy was systematically investigated using the experimental method and finite element analysis. The research activity aimed to gain further insight into the formability of magnesium alloy AZ31 (aluminium 3 wt per cent, zinc 1 wt per cent) and to have first-hand knowledge of the correlations between the material's properties and the processing parameters. In this work, the mechanical properties of magnesium alloy AZ31 sheet were analysed according to the results of tensile tests. A set of experimental equipment with temperature control was employed to perform warm deep drawing of magnesium alloy AZ31 sheets under various forming conditions. The most important process parameters, including the punch speed, the forming temperature, and the geometrical shape of the blank, were taken into account and optimal values were proposed. Finite element analyses were also performed to evaluate the effects of the process parameters on the formability of rectangular cup drawing and to predict the process defects during the process.

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