Finite element simulation on the propagation of Luders band and effect of stress concentration

Finite element method (FEM), using a viscoplastic constitutive model proposed by Yoshida [Int. J. Plasticity 16 (2000) 359], has been applied to simulate the propagation of Luders band for an annealed low-carbon steel strip under uniaxial tension test. By reducing the thickness of corresponding element, additional stress concentration is introduced into the FEM model. Calculated results show that the formation and propagation of Luders band are affected by the level of stress concentration existing at the ends of the specimen. (C) 2003 Elsevier Science B.V. All rights reserved.