Nonlinear regularization operators as derived from the micromorphic approach to gradient elasticity, viscoplasticity and damage

S Forest - Proceedings of the Royal Society A …, 2016 - royalsocietypublishing.org
The construction of regularization operators presented in this work is based on the
introduction of strain or damage micromorphic degrees of freedom in addition to the …

Toward robust scalar-based gradient plasticity modeling and simulation at finite deformations

M Abatour, S Forest, K Ammar, C Ovalle, N Osipov… - Acta Mechanica, 2023 - Springer
Strain gradient plasticity has been the subject of extensive research in the past 40 years in
order to model size effects in metal plasticity, on the one hand, and provide finite width shear …

Elasto-viscoplastic phase field modelling of anisotropic cleavage fracture

P Shanthraj, B Svendsen, L Sharma, F Roters… - Journal of the …, 2017 - Elsevier
A finite-strain anisotropic phase field method is developed to model the localisation of
damage on a defined family of crystallographic planes, characteristic of cleavage fracture in …

[HTML][HTML] Structure-property relationships in nanoporous metallic glasses

D Şopu, C Soyarslan, B Sarac, S Bargmann, M Stoica… - Acta materialia, 2016 - Elsevier
We investigate the influence of various critical structural aspects such as pore density,
distribution, size and number on the deformation behavior of nanoporous Cu 64 Zr 36 glass …

A gradient plasticity grain boundary yield theory

S Wulfinghoff, E Bayerschen, T Böhlke - International Journal of Plasticity, 2013 - Elsevier
A strain gradient crystal plasticity theory is presented that accounts for the resistance of grain
boundaries against plastic flow based on an interface yield condition. This theory …

A phase field model for damage in elasto-viscoplastic materials

P Shanthraj, L Sharma, B Svendsen, F Roters… - Computer Methods in …, 2016 - Elsevier
A phase field method for brittle fracture is formulated for a finite strain elasto-viscoplastic
material using a novel obstacle phase field energy model. The obstacle energy model …

Modelling the torsion of thin metal wires by distortion gradient plasticity

L Bardella, A Panteghini - Journal of the Mechanics and Physics of Solids, 2015 - Elsevier
Under small strains and rotations, we apply a phenomenological higher-order theory of
distortion gradient plasticity to the torsion problem, here assumed as a paradigmatic …

[PDF][PDF] Многоуровневые модели моно-поликристаллических материалов: теория, алгоритмы, примеры применения

ПВ Трусов, АИ Швейкин - 2019 - researchgate.net
Проблема построения конститутивных моделей, позволяющих описывать поведение
материалов в широких диапазонах изменения параметров воздействия (температур …

Strain gradient plasticity modeling of the cyclic behavior of laminate microstructures

S Wulfinghoff, S Forest, T Böhlke - Journal of the Mechanics and Physics of …, 2015 - Elsevier
Two recently proposed Helmholtz free energy potentials including the full dislocation density
tensor as an argument within the framework of strain gradient plasticity are used to predict …

Gradient crystal plasticity including dislocation-based work-hardening and dislocation transport

S Wulfinghoff, T Böhlke - International Journal of Plasticity, 2015 - Elsevier
This work aims at the formulation of a gradient crystal plasticity model which incorporates
some of the latest developments in continuum dislocation theory and is, at the same time …