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Title: Variational projection methods for gradient crystal plasticity using Lie algebras

Journal Article · · International Journal for Numerical Methods in Engineering
DOI:https://doi.org/10.1002/nme.5355· OSTI ID:1401475
ORCiD logo [1];  [1]
  1. Department of Civil and Environmental Engineering University of Tennessee, Knoxville 318 John D. Tickle Engineering Building 37921 Knoxville TN USA

Summary A computational method is developed for evaluating the plastic strain gradient hardening term within a crystal plasticity formulation. While such gradient terms reproduce the size effects exhibited in experiments, incorporating derivatives of the plastic strain yields a nonlocal constitutive model. Rather than applying mixed methods, we propose an alternative method whereby the plastic deformation gradient is variationally projected from the elemental integration points onto a smoothed nodal field. Crucially, the projection utilizes the mapping between Lie groups and algebras in order to preserve essential physical properties, such as orthogonality of the plastic rotation tensor. Following the projection, the plastic strain field is directly differentiated to yield the Nye tensor. Additionally, an augmentation scheme is introduced within the global Newton iteration loop such that the computed Nye tensor field is fed back into the stress update procedure. Effectively, this method results in a fully implicit evolution of the constitutive model within a traditional displacement‐based formulation. An elemental projection method with explicit time integration of the plastic rotation tensor is compared as a reference. A series of numerical tests are performed for several element types in order to assess the robustness of the method, with emphasis placed upon polycrystalline domains and multi‐axis loading. Copyright © 2016 John Wiley & Sons, Ltd.

Sponsoring Organization:
USDOE
OSTI ID:
1401475
Journal Information:
International Journal for Numerical Methods in Engineering, Journal Name: International Journal for Numerical Methods in Engineering Vol. 110 Journal Issue: 4; ISSN 0029-5981
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (44)

Superconvergent second derivative recovery technique and its application in a nonlocal damage mechanics model journal August 2013
The exact derivative of the exponential of an unsymmetric tensor journal January 2001
Consideration of grain-size effect and kinetics in the plastic deformation of metal polycrystals journal August 2000
Validation of a crystal plasticity model using high energy diffraction microscopy journal February 2012
Dislocation-based micropolar single crystal plasticity: Comparison of multi- and single criterion theories journal February 2011
Bending of a single crystal: discrete dislocation and nonlocal crystal plasticity simulations journal September 2004
A direct finite element implementation of the gradient-dependent theory journal January 2005
A polycrystal plasticity model based on the mechanical threshold journal October 2002
F-bar-based linear triangles and tetrahedra for finite strain analysis of nearly incompressible solids. Part I: formulation and benchmarking
  • Neto, E. A. de Souza; Pires, F. M. Andrade; Owen, D. R. J.
  • International Journal for Numerical Methods in Engineering, Vol. 62, Issue 3 https://doi.org/10.1002/nme.1187
journal January 2005
Three dimensional predictions of grain scale plasticity and grain boundaries using crystal plasticity finite element models journal August 2014
Finite element analysis of geometrically necessary dislocations in crystal plasticity: FINITE ELEMENT ANALYSIS OF GNDS IN CRYSTAL PLASTICITY journal June 2012
Geometrically necessary dislocations, hardening, and a simple gradient theory of crystal plasticity journal January 2003
Super-convergent second derivative recovery for lower-order strain gradient plasticity journal April 2014
A comparison of dislocation induced back stress formulations in strain gradient crystal plasticity journal November 2006
A study of microstructural length scale effects on the behaviour of FCC polycrystals using strain gradient concepts journal September 2005
Micromorphic Approach for Gradient Elasticity, Viscoplasticity, and Damage journal March 2009
An explicit finite element approach with patch projection technique for strain gradient plasticity formulations journal August 2011
Consistent crystal plasticity kinematics and linearization for the implicit finite element method journal August 2015
Finite element implementation of a generalised non-local rate-dependent crystallographic formulation for finite strains journal January 2001
A discontinuous Galerkin formulation for classical and gradient plasticity – Part 1: Formulation and analysis journal August 2007
Gradient plasticity theory with a variable length scale parameter journal July 2005
Strain gradient plasticity: Theory and experiment journal February 1994
Crystal plasticity model with enhanced hardening by geometrically necessary dislocation accumulation journal November 2002
Dynamic explicit solution for higher-order crystal plasticity theories journal February 2014
On the development of stage IV hardening using a model based on the mechanical threshold journal April 2002
Numerical integration of rate constitutive equations in finite deformation analysis journal October 1983
Influence of in-grain mesh resolution on the prediction of deformation textures in fcc polycrystals by crystal plasticity FEM journal April 2007
The Deformation and Ageing of Mild Steel: III Discussion of Results journal September 1951
A Finite Element approach with patch projection for strain gradient plasticity formulations journal April 2007
Gradient crystal plasticity including dislocation-based work-hardening and dislocation transport journal June 2015
Lie-group interpolation and variational recovery for internal variables journal June 2013
A microbend test method for measuring the plasticity length scale journal September 1998
A note on mass lumping and related processes in the finite element method journal January 1976
Strain Gradient Plasticity book January 1997
A framework for residual-based stabilization of incompressible finite elasticity: Stabilized formulations and <mml:math altimg="si67.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>F</mml:mi></mml:mrow><mml:mrow><mml:mo>¯</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:math> methods for linear triangles and tetrahedra journal December 2013
A discrete dislocation analysis of bending journal January 1999
Some geometrical relations in dislocated crystals journal March 1953
A simple error estimator and adaptive procedure for practical engineerng analysis journal February 1987
Adaptive mesh refinement in strain localization problems journal September 1991
Finite deformation plasticity based on the additive split of the rate of deformation and hyperelasticity journal October 2000
Mechanics of dislocation pile-ups: A unification of scaling regimes journal October 2014
Energy, configurational forces and characteristic lengths associated with the continuum description of geometrically necessary dislocations journal October 2005
A discontinuous Galerkin formulation for classical and gradient plasticity. Part 2: Algorithms and numerical analysis journal December 2007
A dislocation density based constitutive model for crystal plasticity FEM including geometrically necessary dislocations journal May 2006

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