A porous crystal plasticity constitutive model for ductile deformation and failure in porous single crystals [PDF]
, 2018 The author thankfully acknowledges the financial support of EPSRC funding (EP/ L021714/1).Peer ...
Siddiq, Amir
core +1 more source
Hebbian and Gradient-based Plasticity Enables Robust Memory and Rapid Learning in RNNs [PDF]
arXiv, 2023 Rapidly learning from ongoing experiences and remembering past events with a flexible memory system are two core capacities of biological intelligence. While the underlying neural mechanisms are not fully understood, various evidence supports that synaptic plasticity plays a critical role in memory formation and fast learning. Inspired by these results,
arxiv
Stress Gradient Plasticity: Concept and Applications
Procedia IUTAM, 2014 AbstractThe effect of a linear applied shear stress gradient on the yield stress of a dislocation pileup is investigated analyti- cally using the continuum theory of dislocation pileups. The solution agrees well with numerical discrete dislocation simulations of a single source-obstacle pair.
Chakravarthy, Srinath S. +1 more
openaire +2 more sources
, 2017 The standard way of modeling plasticity in polycrystals is by using the crystal plasticity model for single crystals in each grain, and imposing suitable traction and slip boundary conditions across grain boundaries.
Admal, Nikhil Chandra +2 more
core +1 more source
Void growth in high strength aluminium alloy single crystals : a CPFEM based study [PDF]
, 2017 The author thankfully acknowledges the financial support of EPSRC funding (EP/L021714/1).Peer ...
Asim, Umair +2 more
core +1 more source
A canonical rate-independent model of geometrically linear isotropic gradient plasticity with isotropic hardening and plastic spin accounting for the Burgers vector [PDF]
Continuum Mechanics and Thermodynamics, 2019, 2016 In this paper we propose a canonical variational framework for rate-independent phenomenological geometrically linear gradient plasticity with plastic spin. The model combines the additive decomposition of the total distortion into non-symmetric elastic and plastic distortions, with a defect energy contribution taking account of the Burgers vector ...
arxiv +1 more source
A multiplicative finite strain crystal plasticity formulation based on additive elastic corrector rates: Theory and numerical implementation [PDF]
International Journal of Plasticity 137 (2021) 102899, 2020 The purpose of continuum plasticity models is to efficiently predict the behavior of structures beyond their elastic limits. The purpose of multiscale materials science models, among them crystal plasticity models, is to understand the material behavior and design the material for a given target.
arxiv +1 more source
Effects of chronic browsing on life‐history traits of an irruptive large herbivore population
Population Ecology, EarlyView.This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji +9 more
wiley +1 more source
Modeling the hall-petch effect with a gradient crystal plasticity theory including a grain boundary yield criterion [PDF]
, 2013 . A strain gradient crystal plasticity theory including the gradient of the equiv- alent plastic strain ∇γeq is discussed. A grain boundary yield condition is proposed in order to account for the influence of the grain boundaries ...
Bayerschen, Eric +2 more
core
A rate-independent model for geomaterials under compression coupling strain gradient plasticity and damage [PDF]
arXiv, 2023 We study a strain gradient-enhanced version of a model for geomaterials under compression by Marigo and Kazymyrenko (2019) coupling damage and small-strain associative plasticity. We prove that the jumps in time of the plastic variable may happen only along jumps of the damage variable.
arxiv