Simulation of high pressure torsion tests of pearlitic steel

被引：12
|
作者：
Larijani, Nasim [1 ]
Kammerhofer, Christoph [2 ]
Ekh, Magnus [1 ]
机构：
[1] Chalmers, Dept Appl Mech, S-41296 Gothenburg, Sweden
[2] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2015年 / 223卷
关键词：
High pressure torsion; Pearlitic steel; Finite element method; Large strains; Plasticity; Anisotropy; PLASTIC-DEFORMATION BEHAVIOR; FINITE-ELEMENT-ANALYSIS;
D O I：
10.1016/j.jmatprotec.2015.04.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High pressure torsion (HPT) is a severe plastic deformation (SPD) method that can transform the characteristic lamellar microstructure of pearlitic steel to a severely deformed and aligned microstructure with respect to the deformation direction. In the current paper, HPT experiment results for the standard rail grade R260 were utilised to calibrate a material model formulated for large deformations to predict evolution of anisotropy due to microstructural changes in pearlitic steel. The HPT deformation procedure is simulated in the commercial Finite Element (FE) package ABAQUS. Numerical results agree well with experimental data demonstrating the high potential of the proposed material model in analyses including large deformations of pearlitic steel, e.g. in railway applications and Rolling Contact Fatigue (RCF) analyses. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：337 / 343
页数：7
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