Premium
Numerical aspects of failure modeling of amorphous thermoplastics
Author(s) -
Schneider Konrad,
Seelig Thomas
Publication year - 2014
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201410054
Subject(s) - amorphous solid , finite element method , constitutive equation , stress (linguistics) , flow (mathematics) , power law , work (physics) , exponential function , element (criminal law) , mathematics , computer science , materials science , mechanics , law , physics , mechanical engineering , engineering , structural engineering , mathematical analysis , chemistry , philosophy , linguistics , statistics , organic chemistry , political science
The present work investigates a reliable method of integrating the evolution equations of constitutive models for amorphous thermoplastics that typically utilize a power‐law or exponential‐type flow rule. When it comes to sudden changes in the external stress (e.g. element deletion technique in explicit finite element analysis) these functional dependencies need a special treatment to assure a numerically stable integration of the evolution equations. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)