Journal ArticleDOI
Three-dimensional crystal plasticity simulations using peridynamics theory and experimental comparison
TLDR
In this paper, a mesh-free non-ordinary state-based peridynamics (PD) technique is developed for simulating the elasto-plastic deformation of 3D polycrystalline aggregates of a magnesium alloy.About:
This article is published in International Journal of Plasticity.The article was published on 2021-07-01. It has received 22 citations till now. The article focuses on the topics: Plasticity & Peridynamics.read more
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Deep insights on the creep behavior and mechanism of a novel G115 steel: Micromechanical modeling and experimental validation
Bo Xiao,Surya Deo Yadav,Lei Zhao,Zhengxin Tang,Yongdian Han,Xiawei Yang,Ji-Jung Kai,Tao Yang,Lianyong Xu +8 more
TL;DR: In this article, a modified Orowan's equation was applied to evaluate the creep strain since dislocation motion was a basis of creep deformation, and three kinds of dislocation configurations were incorporated to model the evolution of the substructures, and meanwhile, the kinetic equations were also employed here to describe the damage evolution.
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From CP-FFT to CP-RNN: Recurrent Neural Network Surrogate Model of Crystal Plasticity
TL;DR: In this article , the authors apply the same methodology to 2D and 3D datasets corresponding to the effective mechanical behavior of an aluminum alloy as obtained through Crystal Plasticity simulations, obtaining reasonable approximations of the behavior using RNN models of size ranging from 5'000 to 100'000 parameters.
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Estimation of micro-Hall-Petch coefficients for prismatic slip system in Mg-4Al as a function of grain boundary parameters
TL;DR: In this paper , the micro-Hall-Petch coefficient values for the prismatic slip (k μ p r i s m a t i c ) in Mg-4Al and their correlation with the grain boundary parameters were investigated.
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Investigation of microscale fracture mechanisms in glass–ceramics using peridynamics simulations
TL;DR: In this paper , a non-local theory of continuum mechanics is applied to simulate crack propagation through microstructural realizations of a model lithium-disilicate glass-ceramic.
Predicting the Hall-Petch effect in FCC metals using non-local crystal plasticity.
TL;DR: In this paper, a non-local crystal plasticity model is proposed, in which the geometrically necessary dislocation (GND) density is calculated using a nonlocal integral approach.
References
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Reformulation of Elasticity Theory for Discontinuities and Long-Range Forces
TL;DR: In this paper, a peridynamic formulation for the basic equations of continuum mechanics is proposed, and the propagation of linear stress waves in the new theory is discussed, and wave dispersion relations are derived.
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A meshfree method based on the peridynamic model of solid mechanics
TL;DR: In this article, a numerical method for solving dynamic problems within the peridynamic theory is described, and the properties of the method for modeling brittle dynamic crack growth are discussed, as well as its accuracy and numerical stability.
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Peridynamic States and Constitutive Modeling
TL;DR: In this article, a generalization of the original peridynamic framework for solid mechanics is proposed, which allows the response of a material at a point to depend collectively on the deformation of all bonds connected to the point.
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Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients
TL;DR: In this article, the authors used uniaxial compression experiments on Au cylinders at the sub-micron scale, without stress/strain gradients, and determined compression stress, strain, and stiffness of the pillars.
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Orientation gradients and geometrically necessary dislocations in ultrafine grained dual-phase steels studied by 2D and 3D EBSD
TL;DR: In this article, orientation gradients and geometrically necessary dislocations (GNDs) in two ultrafine grained dual-phase steels with different martensite particle size and volume fraction were analyzed using high-resolution electron backscatter diffraction (EBSD).