Paper Title:
Effects of Crystallographic Texture on Plastic Flow Localization
  Abstract

In this study, effects of typical texture components observed in rolled aluminum alloy sheets (i.e. Copper, Brass, S, Cube and Goss texture components) on plastic flow localization are studied. The material response is described by a generalized Taylor-type polycrystal model, in which each grain is characterized in terms of an elastic-viscoplastic continuum slip constitutive relation. First, forming limits of thin sheet set by sheet necking are predicted using a Marciniak–Kuczynski (M–K-) type approach. It is shown that only the Cube texture component yields forming limits higher than that for a random texture in the biaxial stretch range. Next, three-dimensional shear band analyses are performed, using a three-dimensional version of M–K-type model, but the overall deformation mode is restricted to a plane strain state. From this simple model analysis, two important quantities regarding shear band formation are obtained: i.e. the critical strain at the onset of shear banding and the corresponding orientation of shear band. It is concluded that the Cube texture component is said to be a shear band free texture, while some texture components exhibit significantly low resistance to shear band formation. Finally, shear band developments in plane strain pure bending of sheet specimens with the typical textures are studied.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
211-216
DOI
10.4028/www.scientific.net/KEM.340-341.211
Citation
M. Kuroda, "Effects of Crystallographic Texture on Plastic Flow Localization", Key Engineering Materials, Vols. 340-341, pp. 211-216, 2007
Online since
June 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jana Horníková, Miroslav Černý, Pavel Šandera, Jaroslav Pokluda
Abstract:The nanoindentation test in the dislocation free crystal of copper is simulated by finite element calculations coupled with ab initio...
801
Authors: Lembit A. Kommel
Abstract:High purity (99.99, wt %) niobium ingots were received by double electron beam melting technology. The specimens of pure metals with cast...
349
Authors: Wojciech Wajda, Henryk Paul
Abstract:The paper describes the mechanism of deformation at 77 K of pure aluminum bicrystals of different grain orientations. The following...
108
Authors: Hui Hui Zhao, Wen Fang Zhang
Chapter 3: Civil Engineering
Abstract:The application of ABAQUS finite element software non-linear finite element analysis of brick masonry walls with structural column. Build...
791
Authors: Holanyo K. Akpama, Mohamed Ben Bettaieb, Farid Abed-Meraim
Chapter 1: Formability of Metallic Materials
Abstract:The main objective of this contribution is to compare the Forming Limit Diagrams (FLDs) predicted by the use of two different vertex...
21