Simulation of high pressure torsion tests of pearlitic steel
Artikel i vetenskaplig tidskrift, 2015

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.

Large strains

Pearlitic steel

Anisotropy

High pressure torsion

Finite element method

Plasticity

Författare

NASIM LARIJANI

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

C. Kammerhofer

Erich Schmid Institute of Materials Science

Magnus Ekh

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Journal of Materials Processing Technology

0924-0136 (ISSN)

Vol. 223 337-343

Ämneskategorier

Bearbetnings-, yt- och fogningsteknik

DOI

10.1016/j.jmatprotec.2015.04.018