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On the Treatment of Plastic Deformation in the Particle Finite Element Method
Author(s) -
Ye Xialong,
Müller Ralf
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800362
Subject(s) - plasticity , finite element method , nonlinear system , finite strain theory , deformation (meteorology) , continuum mechanics , multiplicative function , discrete element method , mechanics , computer science , structural engineering , mathematics , materials science , mathematical analysis , physics , engineering , composite material , quantum mechanics
The particle finite element method (PFEM) combines the benefits of discrete modeling techniques and approaches based on continuum mechanics. It provides a convenient tool to deal with the problem of large configurational change, such as metal cutting, in which nonlinear plasticity plays a key role [1]. In this article we introduce a phenomenological plasticity model with the help of a multiplicative decomposition of the deformation gradient and an intermediate local configuration into the PFEM framework. Numerical examples of cutting simulations are presented to show the performance of the formulation.