Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Constitutive modelling of nonproportional cyclic plasticity

Constitutive modelling of nonproportional cyclic plasticity A multiplicative hardening function and a unified evolution rule of the hardening factors are proposed. The hardening factorf 1 is introduced to describe cyclic hardening with respect to the plastic strain range, whilef 2 andf 3 describe, respectively, instantaneous and hereditary additional hardening with respect to the nonproportionality of the plastic strain path. Two material dependent memory parametersa 1 anda 3 are introduced to keep the memory of the largest cyclic and additional hardening in the previous plastic deformation history. Different hardening mechanisms are then embedded into a thermomechanically consistent constitutive equation through the hardening function. The constitutive response of 304 and 316 stainless steels subjected to biaxial nonproportional cyclic loading is analyzed and the proposed model is critically verified by comparing the results with experimental results obtained by Tanaka et al., and Ohashi et al. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Mechanica Sinica Springer Journals

Constitutive modelling of nonproportional cyclic plasticity

Acta Mechanica Sinica , Volume 8 (3) – Aug 26, 2006

Loading next page...
 
/lp/springer-journals/constitutive-modelling-of-nonproportional-cyclic-plasticity-bvml5R6RRO

References (10)

Publisher
Springer Journals
Copyright
Copyright
Subject
Engineering; Theoretical and Applied Mechanics; Classical and Continuum Physics; Engineering Fluid Dynamics; Computational Intelligence
ISSN
0567-7718
eISSN
1614-3116
DOI
10.1007/BF02489248
Publisher site
See Article on Publisher Site

Abstract

A multiplicative hardening function and a unified evolution rule of the hardening factors are proposed. The hardening factorf 1 is introduced to describe cyclic hardening with respect to the plastic strain range, whilef 2 andf 3 describe, respectively, instantaneous and hereditary additional hardening with respect to the nonproportionality of the plastic strain path. Two material dependent memory parametersa 1 anda 3 are introduced to keep the memory of the largest cyclic and additional hardening in the previous plastic deformation history. Different hardening mechanisms are then embedded into a thermomechanically consistent constitutive equation through the hardening function. The constitutive response of 304 and 316 stainless steels subjected to biaxial nonproportional cyclic loading is analyzed and the proposed model is critically verified by comparing the results with experimental results obtained by Tanaka et al., and Ohashi et al.

Journal

Acta Mechanica SinicaSpringer Journals

Published: Aug 26, 2006

There are no references for this article.