Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8152
Title: A simple model for viscous regularization of elasto-plastic constitutive laws with softening
Authors: Silva, V. Dias da 
Issue Date: 2004
Citation: Communications in Numerical Methods in Engineering. 20:7 (2004) 547-568
Abstract: An overlay-type rheological model is presented, which is used to introduce viscosity in inviscid elasto-plastic material laws with softening, in order to reduce the mesh-dependency of Finite Element solutions. This model is intended to be an alternative to the well-known visco-plastic formulations of Perzyna and Duvaut-Lions. A time integration algorithm for the visco-elastic model component is presented, being demonstrated in the paper, that it is unconditionally stable and oscillation-free. The algorithm is tested in a problem with slip driven softening (von Mises material) and in a problem with decohesion driven softening (Cam-Clay model). Figures showing the capability of the algorithm to regularize the solution are presented. Copyright © 2004 John Wiley & Sons, Ltd.
URI: http://hdl.handle.net/10316/8152
DOI: 10.1002/cnm.700
Rights: openAccess
Appears in Collections:FCTUC Eng.Civil - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
obra.pdf865.56 kBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

24
checked on May 29, 2020

WEB OF SCIENCETM
Citations

19
checked on Sep 14, 2020

Page view(s)

300
checked on Sep 14, 2020

Download(s)

80
checked on Sep 14, 2020

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.