Modeling of Hcp Metals That Deform by Twinning Using an Anisotropic Elasticity Crystal Plasticity Fem Scheme

2021 ◽  
Author(s):  
Soondo Kweon ◽  
Daniel Raja
Keyword(s):  
Crystal Plasticity ◽  
Anisotropic Elasticity ◽  
Crystal Plasticity Fem

Prediction of Ridging by 3-Dimensional Texture in Ferritic Stainless Steels

2014 ◽  
Vol 622-623 ◽  
pp. 72-76
Author(s):  
Yang Jin Chung ◽  
Deok Chan Ahn ◽  
Frédéric Barlat ◽  
Myoung Gyu Lee
Keyword(s):  
Crystal Plasticity ◽  
Stainless Steels ◽  
Rolling Direction ◽  
Single Layer ◽  
Experimental Result ◽  
Dimensional Structure ◽  
Ferritic Stainless Steels ◽  
3 Dimensional ◽  
Crystal Plasticity Fem ◽  
Constitutive Parameters

Experimental and numerical investigations of the ridging in ferritic stainless steels were presented in this paper. Two kinds of ferritic stainless steels exhibiting different levels of ridging were selected as model materials. The measured roughness of the uniaxially elongated specimens up to 15% in rolling direction (RD) was compared to the prediction using a rate-dependent crystal plasticity FEM (CPFEM). Initial textures of the two materials on 5 equi-spaced sequential RD planes were obtained by EBSD measurement. The initial textures were utilized as input data for the constitutive parameters of the crystal plasticity. Measured respective single planar textures were collected all together so that the 5-layer textures complete 3-dimensional structure and they were mapped onto the FE mesh. Ridging profiles predicted by the CPFEM using both every single layer texture and multilayer texture were compared to the experimental results. Predicted ridging profile of a material exhibiting weak ridging by using 5-layer EBSD mapping was in good agreement with the experimental result. On the other hand, prediction by using only single layer texture was efficient to estimate the ridging in a material exhibiting severe ridging due to the elongated cluster of analogous orientations along RD.

A Texture Evolution Study Using the Texture Component Crystal Plasticity FEM

2005 ◽  
Vol 495-497 ◽  
pp. 937-944 ◽  
Author(s):  
Franz Roters ◽  
Heyon S. Jeon-Haurand ◽  
Dierk Raabe
Keyword(s):  
Boundary Conditions ◽  
Crystal Plasticity ◽  
Texture Component ◽  
Hot Rolling ◽  
Texture Evolution ◽  
Texture Mapping ◽  
Rolling Texture ◽  
Fem Simulations ◽  
Evolution Study ◽  
Crystal Plasticity Fem

Crystal plasticity FEM simulations of plane strain compression were performed. The Texture Component Crystal Plasticity-FEM was used for the texture mapping. Two different starting textures (random and hot rolling texture) were studied using four different FE meshes and two different sets of boundary conditions. While for the random starting texture the evolution of the texture with deformation was found to be rather similar in all cases studied, the simulations using an experimental hot rolling texture as staring texture are much more sensitive to the boundary conditions and probably also to changes in the mesh geometry.

Crystal plasticity FEM study of twinning and slip in a Mg single crystal by Erichsen test

2018 ◽  
Vol 156 ◽  
pp. 342-355 ◽  
Author(s):  
C.S. Hyun ◽  
M.S. Kim ◽  
S.-H. Choi ◽  
K.S. Shin
Keyword(s):  
Single Crystal ◽  
Crystal Plasticity ◽  
Crystal Plasticity Fem ◽  
Erichsen Test
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